#596C7E
Closest named color: Slate (#516572). oklch(52.2% 0.037 247.1), rgb(89, 108, 126).
Aa
White text reads best on this color (5.42:1).
About this color
#596C7E is a medium-dark, muted blue. In OKLCH its lightness is 52%, its chroma 0.037 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.028 away. White text reads best on it, at 5.42:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.87:1 |
| White text | 5.42:1 |
Values
| HEX | #596C7E |
| RGB | rgb(89, 108, 126) |
| HSL | hsl(209, 17%, 42%) |
| OKLCH | oklch(52.2% 0.037 247.1) |
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 #596C7E | 5.42:1 | AA | Lc -82.4 | Fine for body text |
| Black text on #596C7E | 3.87:1 | AA large text | Lc 27.0 | Dividers and decoration only |
| #596C7E text on white | 5.42:1 | AA | Lc 77.1 | Fine for body text |
| #596C7E text on black | 3.87:1 | AA large text | Lc -24.7 | 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
#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
#B8C2CC
oklch(80.9% 0.018 248)
-
Step 400
400
#93A3B2
oklch(70.8% 0.028 246.5)
-
Step 500
500
#788C9F
oklch(63.1% 0.037 247)
-
Step 600
600
#61768A
oklch(55.6% 0.04 247.3)
-
Step 700
700 (this color)
#596C7E
oklch(52.2% 0.037 247.1)
-
Step 800
800
#42515F
oklch(42.8% 0.03 246.7)
-
Step 900
900
#38434E
oklch(37.7% 0.024 248.5)
-
Step 950
950
#21272D
oklch(26.9% 0.014 248.4)
#596C7E 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 | 0.017 |
| Deuteranopia (no green cones) | #60687E | 0.015 |
| Tritanopia (no blue cones) | #4E7072 | 0.030 |
| Achromatopsia (no color) | #6A6A6A | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #596C7E
#596C7E
oklch(52.2% 0.037 247.1)
- #786653
#786653
oklch(52.2% 0.037 68.4)
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 #596C7E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.028
- Metallic Blue #4F738E ΔE 0.028
- Dim Gray #696969 ΔE 0.037
- Battleship Gray #6C757D ΔE 0.040
- Dull Blue #49759C ΔE 0.048
- Grey Blue #647D8E ΔE 0.054
- Stormy Blue #507B9C ΔE 0.054
- Battleship Grey #6B7C85 ΔE 0.055
Use #596C7E 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.