#737688
Closest named color: Battleship Gray (#6C757D). oklch(57% 0.028 278), rgb(115, 118, 136).
Aa
Black text reads best on this color (4.67:1).
About this color
#737688 is a medium-dark close to neutral grey. In OKLCH its lightness is 57%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Battleship Gray (#6C757D), ΔE 0.021 away. Black text reads best on it, at 4.67:1.
| Hue family | Neutrals |
| Lightness | medium-dark (57%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Battleship Gray (#6C757D) |
| Black text | 4.67:1 |
| White text | 4.49:1 |
Values
| HEX | #737688 |
| RGB | rgb(115, 118, 136) |
| HSL | hsl(231, 8%, 49%) |
| OKLCH | oklch(57% 0.028 278) |
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 #737688 | 4.49:1 | AA large text | Lc -76.7 | Fine for body text |
| Black text on #737688 | 4.67:1 | AA | Lc 32.9 | Non-text elements, placeholder text |
| #737688 text on white | 4.49:1 | AA large text | Lc 71.2 | Content text, not long reading |
| #737688 text on black | 4.67:1 | AA | Lc -30.5 | 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
#D8D9DE
oklch(88.6% 0.007 277.2)
-
Step 300
300
#BEC0C9
oklch(80.9% 0.013 276.1)
-
Step 400
400
#9DA0AD
oklch(70.7% 0.019 275.5)
-
Step 500
500
#858899
oklch(63% 0.026 277.7)
-
Step 600
600 (this color)
#737688
oklch(57% 0.028 278)
-
Step 700
700
#5D6070
oklch(49.2% 0.026 277)
-
Step 800
800
#4C4E5B
oklch(42.7% 0.022 278.5)
-
Step 900
900
#3F414B
oklch(37.7% 0.017 276.6)
-
Step 950
950
#25262C
oklch(27% 0.011 278.1)
#737688 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) | #717889 | 0.006 |
| Deuteranopia (no green cones) | #707688 | 0.004 |
| Tritanopia (no blue cones) | #6E797C | 0.025 |
| Achromatopsia (no color) | #777777 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #737688
#737688
oklch(57% 0.028 278)
- #7B7865
#7B7865
oklch(57% 0.028 99.8)
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 #737688, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Gray #6C757D ΔE 0.021
- Battleship Grey #6B7C85 ΔE 0.022
- Grey Blue #647D8E ΔE 0.026
- Slate Gray #708090 ΔE 0.028
- Purple Grey #866F85 ΔE 0.033
- Steel Grey #6F828A ΔE 0.034
- Grey Purple #826D8C ΔE 0.035
- Lavender Gray #7E7F9A ΔE 0.038
Use #737688 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.