#596F8D
Closest named color: Metallic Blue (#4F738E). oklch(53.6% 0.054 256.3), rgb(89, 111, 141).
Aa
White text reads best on this color (5.14:1).
About this color
#596F8D is a medium-dark, muted blue. In OKLCH its lightness is 54%, its chroma 0.054 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.016 away. White text reads best on it, at 5.14:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.08:1 |
| White text | 5.14:1 |
Values
| HEX | #596F8D |
| RGB | rgb(89, 111, 141) |
| HSL | hsl(215, 23%, 45%) |
| OKLCH | oklch(53.6% 0.054 256.3) |
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 #596F8D | 5.14:1 | AA | Lc -80.8 | Fine for body text |
| Black text on #596F8D | 4.08:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #596F8D text on white | 5.14:1 | AA | Lc 75.4 | Fine for body text |
| #596F8D text on black | 4.08:1 | AA large text | Lc -26.3 | 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 600.
-
Step 50
50
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAEF
oklch(93.6% 0.007 260.7)
-
Step 200
200
#D3DAE2
oklch(88.5% 0.013 251.6)
-
Step 300
300
#B7C2D1
oklch(81% 0.024 256.1)
-
Step 400
400
#91A2B9
oklch(70.7% 0.039 256)
-
Step 500
500
#768BA8
oklch(63.1% 0.05 256.5)
-
Step 600
600 (this color)
#596F8D
oklch(53.6% 0.054 256.3)
-
Step 700
700
#4E627D
oklch(49.1% 0.05 256)
-
Step 800
800
#405066
oklch(42.7% 0.042 256.4)
-
Step 900
900
#364253
oklch(37.6% 0.033 257.1)
-
Step 950
950
#202731
oklch(27% 0.021 257.3)
#596F8D 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) | #64708E | 0.016 |
| Deuteranopia (no green cones) | #5E6B8C | 0.012 |
| Tritanopia (no blue cones) | #487579 | 0.047 |
| Achromatopsia (no color) | #6D6D6D | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #596F8D
#596F8D
oklch(53.6% 0.054 256.3)
- #80694A
#80694A
oklch(53.5% 0.054 74.5)
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 #596F8D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.016
- Dull Blue #49759C ΔE 0.029
- Stormy Blue #507B9C ΔE 0.036
- Cerulean #457B9D ΔE 0.040
- Muted Blue #3B719F ΔE 0.041
- Battleship Gray #6C757D ΔE 0.044
- Grey Blue #647D8E ΔE 0.045
- Slate #516572 ΔE 0.048
Use #596F8D 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.