#737C71
Closest named color: Medium Grey (#7D7F7C). oklch(57.5% 0.02 140), rgb(115, 124, 113).
Aa
Black text reads best on this color (4.85:1).
About this color
#737C71 is a medium-dark close to neutral grey. In OKLCH its lightness is 58%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Medium Grey (#7D7F7C), ΔE 0.024 away. Black text reads best on it, at 4.85:1.
| Hue family | Neutrals |
| Lightness | medium-dark (58%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Medium Grey (#7D7F7C) |
| Black text | 4.85:1 |
| White text | 4.32:1 |
Values
| HEX | #737C71 |
| RGB | rgb(115, 124, 113) |
| HSL | hsl(109, 5%, 46%) |
| OKLCH | oklch(57.5% 0.02 140) |
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 #737C71 | 4.32:1 | AA large text | Lc -75.5 | Fine for body text |
| Black text on #737C71 | 4.85:1 | AA | Lc 34.1 | Non-text elements, placeholder text |
| #737C71 text on white | 4.32:1 | AA large text | Lc 70.0 | Content text, not long reading |
| #737C71 text on black | 4.85:1 | AA | Lc -31.7 | 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
#F5F6F5
oklch(97.2% 0.002 145.6)
-
Step 100
100
#E9EAE9
oklch(93.6% 0.002 145.6)
-
Step 200
200
#D7DAD7
oklch(88.5% 0.005 145.5)
-
Step 300
300
#BEC2BD
oklch(80.9% 0.008 139.4)
-
Step 400
400
#9CA39B
oklch(70.7% 0.014 141.8)
-
Step 500
500
#848C82
oklch(63% 0.017 139.4)
-
Step 600
600 (this color)
#737C71
oklch(57.5% 0.02 140)
-
Step 700
700
#5B635A
oklch(49% 0.017 142.2)
-
Step 800
800
#4B5149
oklch(42.7% 0.015 137.8)
-
Step 900
900
#3E433D
oklch(37.6% 0.012 140.5)
-
Step 950
950
#252724
oklch(27% 0.006 134.9)
#737C71 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) | #7D7A70 | 0.015 |
| Deuteranopia (no green cones) | #7B7971 | 0.014 |
| Tritanopia (no blue cones) | #737B79 | 0.014 |
| Achromatopsia (no color) | #797979 | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #737C71
#737C71
oklch(57.5% 0.02 140)
- #7E7580
#7E7580
oklch(57.4% 0.02 320.1)
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 #737C71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Grey #7D7F7C ΔE 0.024
- Gray #808080 ΔE 0.031
- Battleship Grey #6B7C85 ΔE 0.032
- Battleship Gray #6C757D ΔE 0.034
- Steel Grey #6F828A ΔE 0.036
- Slate Gray #708090 ΔE 0.045
- Grey Brown #7F7053 ΔE 0.046
- Grey Blue #647D8E ΔE 0.046
Use #737C71 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.