#5B6574
Closest named color: Slate (#516572). oklch(50.4% 0.027 258.4), rgb(91, 101, 116).
Aa
White text reads best on this color (5.90:1).
About this color
#5B6574 is a medium-dark close to neutral grey. In OKLCH its lightness is 50%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.015 away. White text reads best on it, at 5.90:1.
| Hue family | Neutrals |
| Lightness | medium-dark (50%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.55:1 |
| White text | 5.90:1 |
Values
| HEX | #5B6574 |
| RGB | rgb(91, 101, 116) |
| HSL | hsl(216, 12%, 41%) |
| OKLCH | oklch(50.4% 0.027 258.4) |
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 #5B6574 | 5.90:1 | AA | Lc -84.7 | Fine for body text |
| Black text on #5B6574 | 3.55:1 | AA large text | Lc 24.5 | Dividers and decoration only |
| #5B6574 text on white | 5.90:1 | AA | Lc 79.5 | Fine for body text |
| #5B6574 text on black | 3.55:1 | AA large text | Lc -22.3 | 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 700.
-
Step 50
50
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E8EAEC
oklch(93.6% 0.003 247.9)
-
Step 200
200
#D6D9DE
oklch(88.4% 0.008 260.7)
-
Step 300
300
#BBC1C9
oklch(80.9% 0.013 255.5)
-
Step 400
400
#99A1AE
oklch(70.7% 0.021 260.2)
-
Step 500
500
#808A9A
oklch(63.1% 0.027 259.8)
-
Step 600
600
#697485
oklch(55.6% 0.03 259)
-
Step 700
700 (this color)
#5B6574
oklch(50.4% 0.027 258.4)
-
Step 800
800
#48505B
oklch(42.8% 0.021 256.4)
-
Step 900
900
#3C424B
oklch(37.7% 0.017 258.4)
-
Step 950
950
#23272C
oklch(27.1% 0.011 254)
#5B6574 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) | #606675 | 0.008 |
| Deuteranopia (no green cones) | #5D6374 | 0.006 |
| Tritanopia (no blue cones) | #55686A | 0.023 |
| Achromatopsia (no color) | #646464 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B6574
#5B6574
oklch(50.4% 0.027 258.4)
- #6D6353
#6D6353
oklch(50.4% 0.028 79.6)
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 #5B6574, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.015
- Dim Gray #696969 ΔE 0.032
- Dusty Grape #545775 ΔE 0.045
- Metallic Blue #4F738E ΔE 0.049
- YInMn Blue #415A77 ΔE 0.053
- Battleship Gray #6C757D ΔE 0.055
- Denim #3B638C ΔE 0.056
- Dusky Blue #475F94 ΔE 0.065
Use #5B6574 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.