Blue Grey #758DA3
Blue Grey is a medium-light, muted blue with hex code #758DA3 and RGB rgb(117, 141, 163).
Aa
Black text reads best on this color (6.09:1).
About this color
#758DA3 is a medium-light, muted blue. In OKLCH its lightness is 63%, its chroma 0.043 and its hue 246°. Its hue sits on the cool side of the wheel. It is the named color Blue Grey. Black text reads best on it, at 6.09:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Blue Grey |
| Black text | 6.09:1 |
| White text | 3.44:1 |
Colors that go with Blue Grey
Matches found by rotating Blue Grey around the OKLCH hue wheel, each labelled with the closest name in our list.
Complementary
The opposite hue (180°).
Analogous
Neighbouring hues, 30° either side.
Triadic
Three hues spaced 120° apart.
Color palettes with Blue Grey
Curated color palettes that contain a color within ΔE 0.06 (OKLab) of Blue Grey, closest first.
Similar named colors
The eight named colors closest to Blue Grey, with their ΔE distance.
- Silver Lake Blue #778DA9 ΔE 0.010
- Light Slate Gray #778899 ΔE 0.017
- Steel #738595 ΔE 0.027
- Lavender Gray #7E7F9A ΔE 0.038
- Faded Blue #658CBB ΔE 0.041
- Slate Gray #708090 ΔE 0.042
- Steel Grey #6F828A ΔE 0.044
- Dusty Blue #5A86AD ΔE 0.044
More about Blue Grey
How to make Blue Grey
A starting recipe from common paint colors, found with a spectral paint model (the color mixer’s paint mode). Real pigments vary, so mix a small test batch and adjust.
- 4 parts pink
- 2 parts blue
- 1 part brown
Recipe result: #7F8CA3, a difference of ΔE 0.013 from Blue Grey. That is very close: most people will not see the difference.
Codes for Blue Grey in every format
| HEX | #758DA3 |
| RGB | rgb(117, 141, 163) |
| HSL | hsl(209, 20%, 55%) |
| OKLCH | oklch(63.3% 0.043 246.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #758DA3 | 3.44:1 | AA large text | Lc -67.4 | Content text, not long reading |
| Black text on #758DA3 | 6.09:1 | AA | Lc 42.1 | Non-text elements, placeholder text |
| #758DA3 text on white | 3.44:1 | AA large text | Lc 62.0 | Content text, not long reading |
| #758DA3 text on black | 6.09:1 | AA | Lc -39.7 | Non-text elements, placeholder text |
Shades and tints of Blue Grey
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D3DAE1
oklch(88.5% 0.012 248)
-
Step 300
300
#B6C2CE
oklch(80.8% 0.022 248.1)
-
Step 400
400
#90A3B5
oklch(70.7% 0.034 246.9)
-
Step 500
500 (this color)
#758DA3
oklch(63.3% 0.043 246.2)
-
Step 600
600
#5D768E
oklch(55.5% 0.048 247.6)
-
Step 700
700
#4C6378
oklch(48.9% 0.044 246.4)
-
Step 800
800
#3F5162
oklch(42.7% 0.036 247.2)
-
Step 900
900
#354350
oklch(37.6% 0.029 246.7)
-
Step 950
950
#1F272F
oklch(26.9% 0.019 248.5)
Blue Grey with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #848DA4 | 0.020 |
| Deuteranopia (no green cones) | #7F88A3 | 0.018 |
| Tritanopia (no blue cones) | #689294 | 0.035 |
| Achromatopsia (no color) | #8A8A8A | 0.043 |
Use Blue Grey in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.