#757D8E
Closest named color: Slate Gray (#708090). oklch(58.9% 0.028 265.5), rgb(117, 125, 142).
Aa
Black text reads best on this color (5.08:1).
About this color
#757D8E is a medium-dark close to neutral grey. In OKLCH its lightness is 59%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Slate Gray (#708090), ΔE 0.010 away. Black text reads best on it, at 5.08:1.
| Hue family | Neutrals |
| Lightness | medium-dark (59%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Slate Gray (#708090) |
| Black text | 5.08:1 |
| White text | 4.13:1 |
Values
| HEX | #757D8E |
| RGB | rgb(117, 125, 142) |
| HSL | hsl(221, 10%, 51%) |
| OKLCH | oklch(58.9% 0.028 265.5) |
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 #757D8E | 4.13:1 | AA large text | Lc -73.9 | Content text, not long reading |
| Black text on #757D8E | 5.08:1 | AA | Lc 35.6 | Non-text elements, placeholder text |
| #757D8E text on white | 4.13:1 | AA large text | Lc 68.4 | Content text, not long reading |
| #757D8E text on black | 5.08:1 | AA | Lc -33.2 | 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
#D7D9DE
oklch(88.5% 0.007 268.5)
-
Step 300
300
#BDC1C9
oklch(81% 0.012 264.5)
-
Step 400
400
#9BA1AD
oklch(70.8% 0.019 264.4)
-
Step 500
500
#828A99
oklch(63.2% 0.024 263.1)
-
Step 600
600 (this color)
#757D8E
oklch(58.9% 0.028 265.5)
-
Step 700
700
#5A6170
oklch(49.2% 0.026 265.6)
-
Step 800
800
#494F5B
oklch(42.7% 0.021 264.3)
-
Step 900
900
#3D424B
oklch(37.8% 0.017 262.3)
-
Step 950
950
#24262C
oklch(26.9% 0.012 271)
#757D8E 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) | #787E8F | 0.006 |
| Deuteranopia (no green cones) | #767C8E | 0.003 |
| Tritanopia (no blue cones) | #6F8082 | 0.025 |
| Achromatopsia (no color) | #7D7D7D | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #757D8E
#757D8E
oklch(58.9% 0.028 265.5)
- #847C6B
#847C6B
oklch(58.9% 0.027 85.8)
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 #757D8E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Gray #708090 ΔE 0.010
- Steel Grey #6F828A ΔE 0.019
- Battleship Grey #6B7C85 ΔE 0.021
- Steel #738595 ΔE 0.022
- Grey Blue #647D8E ΔE 0.023
- Lavender Gray #7E7F9A ΔE 0.023
- Gray #808080 ΔE 0.030
- Medium Grey #7D7F7C ΔE 0.032
Use #757D8E 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.