#7B8CA3
Closest named color: Blue Grey (#758DA3). oklch(63.5% 0.04 256), rgb(123, 140, 163).
Aa
Black text reads best on this color (6.12:1).
About this color
#7B8CA3 is a medium-light, muted blue. In OKLCH its lightness is 63%, its chroma 0.040 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Grey (#758DA3), ΔE 0.008 away. Black text reads best on it, at 6.12:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Blue Grey (#758DA3) |
| Black text | 6.12:1 |
| White text | 3.43:1 |
Values
| HEX | #7B8CA3 |
| RGB | rgb(123, 140, 163) |
| HSL | hsl(215, 18%, 56%) |
| OKLCH | oklch(63.5% 0.04 256) |
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 #7B8CA3 | 3.43:1 | AA large text | Lc -67.3 | Content text, not long reading |
| Black text on #7B8CA3 | 6.12:1 | AA | Lc 42.2 | Non-text elements, placeholder text |
| #7B8CA3 text on white | 3.43:1 | AA large text | Lc 61.8 | Content text, not long reading |
| #7B8CA3 text on black | 6.12:1 | AA | Lc -39.9 | Non-text elements, placeholder text |
Tints and shades
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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D4DAE0
oklch(88.6% 0.011 247.9)
-
Step 300
300
#B9C1CD
oklch(80.8% 0.019 258.4)
-
Step 400
400
#94A2B4
oklch(70.7% 0.031 254.7)
-
Step 500
500 (this color)
#7B8CA3
oklch(63.5% 0.04 256)
-
Step 600
600
#63758D
oklch(55.7% 0.043 255.7)
-
Step 700
700
#526278
oklch(49.1% 0.041 256.4)
-
Step 800
800
#435061
oklch(42.7% 0.033 255.2)
-
Step 900
900
#394250
oklch(37.7% 0.027 259.2)
-
Step 950
950
#21272F
oklch(27% 0.017 255.7)
#7B8CA3 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 | 0.013 |
| Deuteranopia (no green cones) | #8089A3 | 0.010 |
| Tritanopia (no blue cones) | #709193 | 0.036 |
| Achromatopsia (no color) | #8A8A8A | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7B8CA3
#7B8CA3
oklch(63.5% 0.04 256)
- #998870
#998870
oklch(63.6% 0.04 76.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #7B8CA3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Grey #758DA3 ΔE 0.008
- Silver Lake Blue #778DA9 ΔE 0.010
- Light Slate Gray #778899 ΔE 0.018
- Steel #738595 ΔE 0.029
- Lavender Gray #7E7F9A ΔE 0.035
- Slate Gray #708090 ΔE 0.043
- Faded Blue #658CBB ΔE 0.044
- Steel Grey #6F828A ΔE 0.046
Use #7B8CA3 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.