#576C7E
Closest named color: Slate (#516572). oklch(52.1% 0.038 244.5), rgb(87, 108, 126).
Aa
White text reads best on this color (5.45:1).
About this color
#576C7E is a medium-dark, muted blue. In OKLCH its lightness is 52%, its chroma 0.038 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.027 away. White text reads best on it, at 5.45:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.85:1 |
| White text | 5.45:1 |
Values
| HEX | #576C7E |
| RGB | rgb(87, 108, 126) |
| HSL | hsl(208, 18%, 42%) |
| OKLCH | oklch(52.1% 0.038 244.5) |
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 #576C7E | 5.45:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #576C7E | 3.85:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #576C7E text on white | 5.45:1 | AA | Lc 77.2 | Fine for body text |
| #576C7E text on black | 3.85:1 | AA large text | Lc -24.6 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAED
oklch(93.6% 0.005 247.9)
-
Step 200
200
#D4DADF
oklch(88.5% 0.009 242.9)
-
Step 300
300
#B7C2CC
oklch(80.9% 0.019 245.4)
-
Step 400
400
#92A3B2
oklch(70.7% 0.029 244.8)
-
Step 500
500
#778C9F
oklch(63% 0.038 245.7)
-
Step 600
600
#5F768A
oklch(55.5% 0.041 244.9)
-
Step 700
700 (this color)
#576C7E
oklch(52.1% 0.038 244.5)
-
Step 800
800
#41515F
oklch(42.7% 0.031 245)
-
Step 900
900
#37434E
oklch(37.7% 0.025 246.2)
-
Step 950
950
#20272E
oklch(26.9% 0.016 248.4)
#576C7E 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) | #656C7F | 0.020 |
| Deuteranopia (no green cones) | #60687E | 0.016 |
| Tritanopia (no blue cones) | #4B7072 | 0.031 |
| Achromatopsia (no color) | #696969 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #576C7E
#576C7E
oklch(52.1% 0.038 244.5)
- #796552
#796552
oklch(52.1% 0.038 65.4)
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 #576C7E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.027
- Metallic Blue #4F738E ΔE 0.028
- Dim Gray #696969 ΔE 0.038
- Battleship Gray #6C757D ΔE 0.042
- Dull Blue #49759C ΔE 0.048
- Denim #3B638C ΔE 0.054
- Stormy Blue #507B9C ΔE 0.054
- Grey Blue #647D8E ΔE 0.055
Use #576C7E 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.