#536E7B
Closest named color: Slate (#516572). oklch(52.2% 0.038 229), rgb(83, 110, 123).
Aa
White text reads best on this color (5.40:1).
About this color
#536E7B is a medium-dark, muted teal or cyan. In OKLCH its lightness is 52%, its chroma 0.038 and its hue 229°. 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 5.40:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.88:1 |
| White text | 5.40:1 |
Values
| HEX | #536E7B |
| RGB | rgb(83, 110, 123) |
| HSL | hsl(200, 19%, 40%) |
| OKLCH | oklch(52.2% 0.038 229) |
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 #536E7B | 5.40:1 | AA | Lc -82.3 | Fine for body text |
| Black text on #536E7B | 3.88:1 | AA large text | Lc 27.1 | Dividers and decoration only |
| #536E7B text on white | 5.40:1 | AA | Lc 76.9 | Fine for body text |
| #536E7B text on black | 3.88:1 | AA large text | Lc -24.8 | 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
#E6EAED
oklch(93.5% 0.006 239.8)
-
Step 200
200
#D3DADE
oklch(88.4% 0.009 232.4)
-
Step 300
300
#B5C3CA
oklch(80.9% 0.018 229.1)
-
Step 400
400
#8FA5AF
oklch(70.8% 0.029 227)
-
Step 500
500
#738E9C
oklch(63.1% 0.037 230.6)
-
Step 600
600
#5B7886
oklch(55.5% 0.04 229.1)
-
Step 700
700 (this color)
#536E7B
oklch(52.2% 0.038 229)
-
Step 800
800
#3D535D
oklch(42.8% 0.032 227.6)
-
Step 900
900
#34444C
oklch(37.6% 0.025 229.8)
-
Step 950
950
#1F282C
oklch(27% 0.015 226.6)
#536E7B 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) | #676D7C | 0.028 |
| Deuteranopia (no green cones) | #61687B | 0.025 |
| Tritanopia (no blue cones) | #467272 | 0.027 |
| Achromatopsia (no color) | #6A6A6A | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #536E7B
#536E7B
oklch(52.2% 0.038 229)
- #7C6357
#7C6357
oklch(52.1% 0.037 47)
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 #536E7B, 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 0.029
- Dim Gray #696969 ΔE 0.038
- Battleship Gray #6C757D ΔE 0.042
- Dull Blue #49759C ΔE 0.051
- Grey Blue #647D8E ΔE 0.055
- Stormy Blue #507B9C ΔE 0.055
- Battleship Grey #6B7C85 ΔE 0.055
Use #536E7B 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.