#596D83
Closest named color: Metallic Blue (#4F738E). oklch(52.7% 0.042 251.1), rgb(89, 109, 131).
Aa
White text reads best on this color (5.32:1).
About this color
#596D83 is a medium-dark, muted blue. In OKLCH its lightness is 53%, its chroma 0.042 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.022 away. White text reads best on it, at 5.32:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 3.93:1 |
| White text | 5.32:1 |
Values
| HEX | #596D83 |
| RGB | rgb(89, 109, 131) |
| HSL | hsl(211, 19%, 43%) |
| OKLCH | oklch(52.7% 0.042 251.1) |
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 #596D83 | 5.32:1 | AA | Lc -81.9 | Fine for body text |
| Black text on #596D83 | 3.93:1 | AA large text | Lc 27.6 | Dividers and decoration only |
| #596D83 text on white | 5.32:1 | AA | Lc 76.5 | Fine for body text |
| #596D83 text on black | 3.93:1 | AA large text | Lc -25.2 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
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
#B8C2CD
oklch(81% 0.019 250.6)
-
Step 400
400
#93A2B3
oklch(70.6% 0.03 251.6)
-
Step 500
500
#788CA1
oklch(63.2% 0.039 249.7)
-
Step 600
600 (this color)
#596D83
oklch(52.7% 0.042 251.1)
-
Step 700
700
#506377
oklch(49.2% 0.04 250)
-
Step 800
800
#425161
oklch(42.8% 0.033 250.3)
-
Step 900
900
#38434F
oklch(37.8% 0.025 250.7)
-
Step 950
950
#21272E
oklch(27% 0.016 252.4)
#596D83 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) | #656D84 | 0.017 |
| Deuteranopia (no green cones) | #606983 | 0.014 |
| Tritanopia (no blue cones) | #4C7274 | 0.037 |
| Achromatopsia (no color) | #6B6B6B | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #596D83
#596D83
oklch(52.7% 0.042 251.1)
- #7B6750
#7B6750
oklch(52.7% 0.043 70.6)
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 #596D83, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.022
- Slate #516572 ΔE 0.035
- Battleship Gray #6C757D ΔE 0.040
- Dull Blue #49759C ΔE 0.042
- Dim Gray #696969 ΔE 0.043
- Stormy Blue #507B9C ΔE 0.048
- Grey Blue #647D8E ΔE 0.050
- Cerulean #457B9D ΔE 0.050
Use #596D83 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.