#737E8D
Closest named color: Slate Gray (#708090). oklch(58.9% 0.026 256.2), rgb(115, 126, 141).
Aa
Black text reads best on this color (5.09:1).
About this color
#737E8D is a medium-dark close to neutral grey. In OKLCH its lightness is 59%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Slate Gray (#708090), ΔE 0.007 away. Black text reads best on it, at 5.09:1.
| Hue family | Neutrals |
| Lightness | medium-dark (59%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Slate Gray (#708090) |
| Black text | 5.09:1 |
| White text | 4.11:1 |
Values
| HEX | #737E8D |
| RGB | rgb(115, 126, 141) |
| HSL | hsl(215, 10%, 50%) |
| OKLCH | oklch(58.9% 0.026 256.2) |
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 #737E8D | 4.11:1 | AA large text | Lc -73.8 | Content text, not long reading |
| Black text on #737E8D | 5.09:1 | AA | Lc 35.8 | Non-text elements, placeholder text |
| #737E8D text on white | 4.11:1 | AA large text | Lc 68.3 | Content text, not long reading |
| #737E8D text on black | 5.09:1 | AA | Lc -33.3 | 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
#E8EAEC
oklch(93.6% 0.003 247.9)
-
Step 200
200
#D6D9DD
oklch(88.4% 0.006 255.5)
-
Step 300
300
#BCC1C8
oklch(80.9% 0.011 256.7)
-
Step 400
400
#99A1AD
oklch(70.6% 0.02 258.4)
-
Step 500
500
#808A98
oklch(63% 0.024 256.8)
-
Step 600
600 (this color)
#737E8D
oklch(58.9% 0.026 256.2)
-
Step 700
700
#58626F
oklch(49.2% 0.024 255)
-
Step 800
800
#48505A
oklch(42.8% 0.02 254)
-
Step 900
900
#3C424A
oklch(37.7% 0.016 255.6)
-
Step 950
950
#23272B
oklch(27% 0.009 248.2)
#737E8D 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) | #797E8E | 0.009 |
| Deuteranopia (no green cones) | #767C8D | 0.007 |
| Tritanopia (no blue cones) | #6D8183 | 0.022 |
| Achromatopsia (no color) | #7D7D7D | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #737E8D
#737E8D
oklch(58.9% 0.026 256.2)
- #867B6C
#867B6C
oklch(58.8% 0.026 75.7)
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 #737E8D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Gray #708090 ΔE 0.007
- Steel Grey #6F828A ΔE 0.015
- Battleship Grey #6B7C85 ΔE 0.018
- Steel #738595 ΔE 0.020
- Grey Blue #647D8E ΔE 0.021
- Lavender Gray #7E7F9A ΔE 0.026
- Gray #808080 ΔE 0.029
- Medium Grey #7D7F7C ΔE 0.030
Use #737E8D 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.