#596C9A
Closest named color: Dull Blue (#49759C). oklch(53.5% 0.076 266.6), rgb(89, 108, 154).
Aa
White text reads best on this color (5.20:1).
About this color
#596C9A is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.076 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Blue (#49759C), ΔE 0.030 away. White text reads best on it, at 5.20:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Dull Blue (#49759C) |
| Black text | 4.03:1 |
| White text | 5.20:1 |
Values
| HEX | #596C9A |
| RGB | rgb(89, 108, 154) |
| HSL | hsl(222, 27%, 48%) |
| OKLCH | oklch(53.5% 0.076 266.6) |
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 #596C9A | 5.20:1 | AA | Lc -81.1 | Fine for body text |
| Black text on #596C9A | 4.03:1 | AA large text | Lc 28.3 | Dividers and decoration only |
| #596C9A text on white | 5.20:1 | AA | Lc 75.7 | Fine for body text |
| #596C9A text on black | 4.03:1 | AA large text | Lc -26.0 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7EAF1
oklch(93.7% 0.01 267.4)
-
Step 200
200
#D3D9E6
oklch(88.5% 0.019 266)
-
Step 300
300
#B6C1D8
oklch(81% 0.035 265.2)
-
Step 400
400
#91A0C4
oklch(70.7% 0.056 267.2)
-
Step 500
500
#7689B5
oklch(63.2% 0.07 266.3)
-
Step 600
600 (this color)
#596C9A
oklch(53.5% 0.076 266.6)
-
Step 700
700
#4E5F89
oklch(49% 0.071 266.9)
-
Step 800
800
#404E70
oklch(42.7% 0.06 266.7)
-
Step 900
900
#36415A
oklch(37.7% 0.045 265.9)
-
Step 950
950
#202635
oklch(27% 0.029 267.5)
#596C9A 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) | #5C709C | 0.013 |
| Deuteranopia (no green cones) | #566A99 | 0.007 |
| Tritanopia (no blue cones) | #43757C | 0.068 |
| Achromatopsia (no color) | #6D6D6D | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #596C9A
#596C9A
oklch(53.5% 0.076 266.6)
- #816A36
#816A36
oklch(53.5% 0.076 85.9)
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 #596C9A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Blue #49759C ΔE 0.030
- Metallic Blue #4F738E ΔE 0.034
- Muted Blue #3B719F ΔE 0.034
- Flat Blue #3C73A8 ΔE 0.037
- French Blue #436BAD ΔE 0.040
- Stormy Blue #507B9C ΔE 0.043
- Cerulean #457B9D ΔE 0.045
- Dusky Blue #475F94 ΔE 0.047
Use #596C9A 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.