#5B7377
Closest named color: Battleship Gray (#6C757D). oklch(53.8% 0.029 208.8), rgb(91, 115, 119).
Aa
White text reads best on this color (5.04:1).
About this color
#5B7377 is a medium-dark close to neutral grey. In OKLCH its lightness is 54%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Battleship Gray (#6C757D), ΔE 0.027 away. White text reads best on it, at 5.04:1.
| Hue family | Neutrals |
| Lightness | medium-dark (54%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Battleship Gray (#6C757D) |
| Black text | 4.16:1 |
| White text | 5.04:1 |
Values
| HEX | #5B7377 |
| RGB | rgb(91, 115, 119) |
| HSL | hsl(189, 13%, 41%) |
| OKLCH | oklch(53.8% 0.029 208.8) |
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 #5B7377 | 5.04:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #5B7377 | 4.16:1 | AA large text | Lc 29.2 | Dividers and decoration only |
| #5B7377 text on white | 5.04:1 | AA | Lc 74.8 | Content text, not long reading |
| #5B7377 text on black | 4.16:1 | AA large text | Lc -26.9 | Dividers and decoration only |
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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EAEB
oklch(93.5% 0.004 219.5)
-
Step 200
200
#D4DADC
oklch(88.4% 0.007 219.6)
-
Step 300
300
#B8C3C5
oklch(80.9% 0.012 209.8)
-
Step 400
400
#92A4A7
oklch(70.6% 0.021 208.7)
-
Step 500
500
#788E92
oklch(63.1% 0.026 209.8)
-
Step 600
600 (this color)
#5B7377
oklch(53.8% 0.029 208.8)
-
Step 700
700
#4F6569
oklch(49% 0.027 209.9)
-
Step 800
800
#415355
oklch(42.8% 0.023 204.7)
-
Step 900
900
#374446
oklch(37.6% 0.017 207.8)
-
Step 950
950
#202829
oklch(27% 0.011 205.8)
#5B7377 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) | #6F7177 | 0.028 |
| Deuteranopia (no green cones) | #6A6D77 | 0.026 |
| Tritanopia (no blue cones) | #527574 | 0.014 |
| Achromatopsia (no color) | #6F6F6F | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B7377
#5B7377
oklch(53.8% 0.029 208.8)
- #7E6865
#7E6865
oklch(53.8% 0.029 27.2)
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 #5B7377, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Gray #6C757D ΔE 0.027
- Dim Gray #696969 ΔE 0.033
- Metallic Blue #4F738E ΔE 0.038
- Battleship Grey #6B7C85 ΔE 0.039
- Grey Blue #647D8E ΔE 0.043
- Slate #516572 ΔE 0.045
- Stormy Blue #507B9C ΔE 0.056
- Steel Grey #6F828A ΔE 0.057
Use #5B7377 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.