#596F83
Closest named color: Metallic Blue (#4F738E). oklch(53.2% 0.041 246.1), rgb(89, 111, 131).
Aa
White text reads best on this color (5.21:1).
About this color
#596F83 is a medium-dark, muted blue. In OKLCH its lightness is 53%, its chroma 0.041 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.020 away. White text reads best on it, at 5.21:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.02:1 |
| White text | 5.21:1 |
Values
| HEX | #596F83 |
| RGB | rgb(89, 111, 131) |
| HSL | hsl(209, 19%, 43%) |
| OKLCH | oklch(53.2% 0.041 246.1) |
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 #596F83 | 5.21:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #596F83 | 4.02:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #596F83 text on white | 5.21:1 | AA | Lc 75.9 | Fine for body text |
| #596F83 text on black | 4.02:1 | AA large text | Lc -25.9 | 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 600.
-
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
#D4DAE0
oklch(88.6% 0.011 247.9)
-
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 (this color)
#596F83
oklch(53.2% 0.041 246.1)
-
Step 700
700
#4F6375
oklch(49% 0.038 245.8)
-
Step 800
800
#415160
oklch(42.7% 0.032 246.9)
-
Step 900
900
#37434E
oklch(37.7% 0.025 246.2)
-
Step 950
950
#20272E
oklch(26.9% 0.016 248.4)
#596F83 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) | #676F84 | 0.020 |
| Deuteranopia (no green cones) | #626B83 | 0.016 |
| Tritanopia (no blue cones) | #4C7475 | 0.035 |
| Achromatopsia (no color) | #6C6C6C | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #596F83
#596F83
oklch(53.2% 0.041 246.1)
- #7D6853
#7D6853
oklch(53.2% 0.041 66.7)
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 #596F83, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.020
- Battleship Gray #6C757D ΔE 0.036
- Slate #516572 ΔE 0.038
- Dull Blue #49759C ΔE 0.040
- Dim Gray #696969 ΔE 0.042
- Stormy Blue #507B9C ΔE 0.044
- Grey Blue #647D8E ΔE 0.045
- Cerulean #457B9D ΔE 0.047
Use #596F83 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.