#78909F
Closest named color: Blue Grey (#758DA3). oklch(64% 0.035 235.5), rgb(120, 144, 159).
Aa
Black text reads best on this color (6.28:1).
About this color
#78909F is a medium-light, muted blue. In OKLCH its lightness is 64%, its chroma 0.035 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Grey (#758DA3), ΔE 0.013 away. Black text reads best on it, at 6.28:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Blue Grey (#758DA3) |
| Black text | 6.28:1 |
| White text | 3.33:1 |
Values
| HEX | #78909F |
| RGB | rgb(120, 144, 159) |
| HSL | hsl(203, 17%, 55%) |
| OKLCH | oklch(64% 0.035 235.5) |
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 #78909F | 3.33:1 | AA large text | Lc -66.3 | Content text, not long reading |
| Black text on #78909F | 6.28:1 | AA | Lc 43.2 | Non-text elements, placeholder text |
| #78909F text on white | 3.33:1 | AA large text | Lc 60.8 | Content text, not long reading |
| #78909F text on black | 6.28:1 | AA | Lc -40.9 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAED
oklch(93.6% 0.005 247.9)
-
Step 200
200
#D3DADF
oklch(88.4% 0.01 238.5)
-
Step 300
300
#B6C3CA
oklch(80.9% 0.017 231)
-
Step 400
400
#91A4B0
oklch(70.8% 0.028 235.5)
-
Step 500
500 (this color)
#78909F
oklch(64% 0.035 235.5)
-
Step 600
600
#5E7787
oklch(55.5% 0.038 236.5)
-
Step 700
700
#4D6472
oklch(49% 0.036 235.2)
-
Step 800
800
#3F525D
oklch(42.7% 0.03 233.8)
-
Step 900
900
#36444C
oklch(37.8% 0.023 233.2)
-
Step 950
950
#20282D
oklch(27.1% 0.015 235.5)
#78909F 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) | #898FA0 | 0.023 |
| Deuteranopia (no green cones) | #848B9F | 0.020 |
| Tritanopia (no blue cones) | #6D9495 | 0.026 |
| Achromatopsia (no color) | #8D8D8D | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #78909F
#78909F
oklch(64% 0.035 235.5)
- #9E8778
#9E8778
oklch(64% 0.036 55.1)
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 #78909F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Grey #758DA3 ΔE 0.013
- Silver Lake Blue #778DA9 ΔE 0.020
- Light Slate Gray #778899 ΔE 0.022
- Steel #738595 ΔE 0.033
- Cool Gray #8D99AE ΔE 0.044
- Cadet Blue #5F9EA0 ΔE 0.046
- Lavender Gray #7E7F9A ΔE 0.047
- Steel Grey #6F828A ΔE 0.047
Use #78909F 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.