#536B7D
Closest named color: Slate (#516572). oklch(51.5% 0.04 241), rgb(83, 107, 125).
Aa
White text reads best on this color (5.57:1).
About this color
#536B7D is a medium-dark, muted blue. In OKLCH its lightness is 52%, its chroma 0.040 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.022 away. White text reads best on it, at 5.57:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.76:1 |
| White text | 5.57:1 |
Values
| HEX | #536B7D |
| RGB | rgb(83, 107, 125) |
| HSL | hsl(206, 20%, 41%) |
| OKLCH | oklch(51.5% 0.04 241) |
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 #536B7D | 5.57:1 | AA | Lc -83.1 | Fine for body text |
| Black text on #536B7D | 3.76:1 | AA large text | Lc 26.2 | Dividers and decoration only |
| #536B7D text on white | 5.57:1 | AA | Lc 77.8 | Fine for body text |
| #536B7D text on black | 3.76:1 | AA large text | Lc -23.9 | 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
#D3DAE0
oklch(88.5% 0.011 243.7)
-
Step 300
300
#B6C3CC
oklch(81% 0.019 237.8)
-
Step 400
400
#90A4B3
oklch(70.8% 0.031 240.4)
-
Step 500
500
#748DA0
oklch(63.1% 0.04 241.1)
-
Step 600
600
#5D778B
oklch(55.6% 0.043 241.6)
-
Step 700
700 (this color)
#536B7D
oklch(51.5% 0.04 241)
-
Step 800
800
#3F5260
oklch(42.8% 0.033 240.5)
-
Step 900
900
#35444E
oklch(37.8% 0.026 237.6)
-
Step 950
950
#1F282E
oklch(27.1% 0.017 237.4)
#536B7D 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) | #636B7E | 0.022 |
| Deuteranopia (no green cones) | #5E667D | 0.020 |
| Tritanopia (no blue cones) | #466F71 | 0.031 |
| Achromatopsia (no color) | #686868 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #536B7D
#536B7D
oklch(51.5% 0.04 241)
- #796350
#796350
oklch(51.6% 0.04 62.6)
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 #536B7D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.022
- Metallic Blue #4F738E ΔE 0.030
- Dim Gray #696969 ΔE 0.041
- Battleship Gray #6C757D ΔE 0.048
- Denim #3B638C ΔE 0.049
- Dull Blue #49759C ΔE 0.050
- Muted Blue #3B719F ΔE 0.055
- Stormy Blue #507B9C ΔE 0.058
Use #536B7D 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.