#596B7C
Closest named color: Slate (#516572). oklch(51.9% 0.035 247), rgb(89, 107, 124).
Aa
White text reads best on this color (5.49:1).
About this color
#596B7C is a medium-dark, muted blue. In OKLCH its lightness is 52%, its chroma 0.035 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.025 away. White text reads best on it, at 5.49:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.81:1 |
| White text | 5.49:1 |
Values
| HEX | #596B7C |
| RGB | rgb(89, 107, 124) |
| HSL | hsl(209, 16%, 42%) |
| OKLCH | oklch(51.9% 0.035 247) |
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 #596B7C | 5.49:1 | AA | Lc -82.8 | Fine for body text |
| Black text on #596B7C | 3.81:1 | AA large text | Lc 26.6 | Dividers and decoration only |
| #596B7C text on white | 5.49:1 | AA | Lc 77.5 | Fine for body text |
| #596B7C text on black | 3.81:1 | AA large text | Lc -24.3 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
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
#B8C2CB
oklch(80.9% 0.017 245.1)
-
Step 400
400
#94A3B1
oklch(70.8% 0.027 246.3)
-
Step 500
500
#798C9E
oklch(63.1% 0.035 246.9)
-
Step 600
600
#627688
oklch(55.6% 0.037 245.7)
-
Step 700
700 (this color)
#596B7C
oklch(51.9% 0.035 247)
-
Step 800
800
#43515E
oklch(42.8% 0.028 246.5)
-
Step 900
900
#38434D
oklch(37.7% 0.022 245.9)
-
Step 950
950
#21272D
oklch(26.9% 0.014 248.4)
#596B7C 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) | #646B7D | 0.016 |
| Deuteranopia (no green cones) | #60677C | 0.015 |
| Tritanopia (no blue cones) | #4F6F70 | 0.029 |
| Achromatopsia (no color) | #696969 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #596B7C
#596B7C
oklch(51.9% 0.035 247)
- #776554
#776554
oklch(51.9% 0.035 65.3)
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 #596B7C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.025
- Metallic Blue #4F738E ΔE 0.032
- Dim Gray #696969 ΔE 0.035
- Battleship Gray #6C757D ΔE 0.042
- Dull Blue #49759C ΔE 0.052
- Denim #3B638C ΔE 0.055
- Grey Blue #647D8E ΔE 0.057
- Battleship Grey #6B7C85 ΔE 0.058
Use #596B7C 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.