#596378
Closest named color: Slate (#516572). oklch(49.9% 0.036 265.1), rgb(89, 99, 120).
Aa
White text reads best on this color (6.03:1).
About this color
#596378 is a medium-dark, muted blue. In OKLCH its lightness is 50%, its chroma 0.036 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.017 away. White text reads best on it, at 6.03:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.48:1 |
| White text | 6.03:1 |
Values
| HEX | #596378 |
| RGB | rgb(89, 99, 120) |
| HSL | hsl(221, 15%, 41%) |
| OKLCH | oklch(49.9% 0.036 265.1) |
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 #596378 | 6.03:1 | AA | Lc -85.3 | Fine for body text |
| Black text on #596378 | 3.48:1 | AA large text | Lc 23.9 | Dividers and decoration only |
| #596378 text on white | 6.03:1 | AA | Lc 80.2 | Fine for body text |
| #596378 text on black | 3.48:1 | AA large text | Lc -21.7 | 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
#E8EAED
oklch(93.6% 0.005 258.3)
-
Step 200
200
#D6D9E0
oklch(88.5% 0.01 267.4)
-
Step 300
300
#BBC1CC
oklch(81% 0.017 262.7)
-
Step 400
400
#98A1B3
oklch(70.8% 0.028 264.4)
-
Step 500
500
#7F8AA0
oklch(63.2% 0.036 264.3)
-
Step 600
600
#68738B
oklch(55.5% 0.04 265.7)
-
Step 700
700 (this color)
#596378
oklch(49.9% 0.036 265.1)
-
Step 800
800
#474F60
oklch(42.7% 0.03 265.3)
-
Step 900
900
#3C424E
oklch(37.8% 0.022 264.3)
-
Step 950
950
#23262E
oklch(26.9% 0.016 269.1)
#596378 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) | #5C6479 | 0.006 |
| Deuteranopia (no green cones) | #5A6178 | 0.006 |
| Tritanopia (no blue cones) | #51676A | 0.032 |
| Achromatopsia (no color) | #636363 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #596378
#596378
oklch(49.9% 0.036 265.1)
- #6C624C
#6C624C
oklch(49.9% 0.036 86.4)
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 #596378, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.017
- Dusty Grape #545775 ΔE 0.037
- Dim Gray #696969 ΔE 0.042
- YInMn Blue #415A77 ΔE 0.045
- Denim #3B638C ΔE 0.048
- Metallic Blue #4F738E ΔE 0.050
- Dusk #4E5481 ΔE 0.055
- Dusky Blue #475F94 ΔE 0.055
Use #596378 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.