#737888
Closest named color: Battleship Grey (#6B7C85). oklch(57.4% 0.025 271.8), rgb(115, 120, 136).
Aa
Black text reads best on this color (4.77:1).
About this color
#737888 is a medium-dark close to neutral grey. In OKLCH its lightness is 57%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Battleship Grey (#6B7C85), ΔE 0.017 away. Black text reads best on it, at 4.77:1.
| Hue family | Neutrals |
| Lightness | medium-dark (57%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Battleship Grey (#6B7C85) |
| Black text | 4.77:1 |
| White text | 4.40:1 |
Values
| HEX | #737888 |
| RGB | rgb(115, 120, 136) |
| HSL | hsl(226, 8%, 49%) |
| OKLCH | oklch(57.4% 0.025 271.8) |
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 #737888 | 4.40:1 | AA large text | Lc -76.0 | Fine for body text |
| Black text on #737888 | 4.77:1 | AA | Lc 33.5 | Non-text elements, placeholder text |
| #737888 text on white | 4.40:1 | AA large text | Lc 70.5 | Content text, not long reading |
| #737888 text on black | 4.77:1 | AA | Lc -31.1 | 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 600.
-
Step 50
50
#F5F5F6
oklch(97% 0.001 286.4)
-
Step 100
100
#E9EAEC
oklch(93.7% 0.003 264.5)
-
Step 200
200
#D7D9DD
oklch(88.5% 0.006 264.5)
-
Step 300
300
#BEC0C8
oklch(80.9% 0.011 274.9)
-
Step 400
400
#9CA0AC
oklch(70.6% 0.018 271.2)
-
Step 500
500
#848998
oklch(63.1% 0.023 271)
-
Step 600
600 (this color)
#737888
oklch(57.4% 0.025 271.8)
-
Step 700
700
#5C606E
oklch(49.1% 0.023 272.9)
-
Step 800
800
#4B4F5A
oklch(42.8% 0.019 269.7)
-
Step 900
900
#3F414A
oklch(37.7% 0.016 275.7)
-
Step 950
950
#25262B
oklch(27% 0.009 276.8)
#737888 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) | #747989 | 0.003 |
| Deuteranopia (no green cones) | #727788 | 0.003 |
| Tritanopia (no blue cones) | #6E7B7D | 0.023 |
| Achromatopsia (no color) | #787878 | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #737888
#737888
oklch(57.4% 0.025 271.8)
- #7E7868
#7E7868
oklch(57.3% 0.025 89.9)
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 #737888, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Grey #6B7C85 ΔE 0.017
- Battleship Gray #6C757D ΔE 0.021
- Slate Gray #708090 ΔE 0.022
- Grey Blue #647D8E ΔE 0.023
- Steel Grey #6F828A ΔE 0.028
- Medium Grey #7D7F7C ΔE 0.035
- Lavender Gray #7E7F9A ΔE 0.035
- Purple Grey #866F85 ΔE 0.036
Use #737888 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.