#536F8F
Closest named color: Metallic Blue (#4F738E). oklch(53.3% 0.06 252.3), rgb(83, 111, 143).
Aa
White text reads best on this color (5.20:1).
About this color
#536F8F is a medium-dark, muted blue. In OKLCH its lightness is 53%, its chroma 0.060 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.013 away. White text reads best on it, at 5.20:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.03:1 |
| White text | 5.20:1 |
Values
| HEX | #536F8F |
| RGB | rgb(83, 111, 143) |
| HSL | hsl(212, 27%, 44%) |
| OKLCH | oklch(53.3% 0.06 252.3) |
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 #536F8F | 5.20:1 | AA | Lc -81.1 | Fine for body text |
| Black text on #536F8F | 4.03:1 | AA large text | Lc 28.3 | Dividers and decoration only |
| #536F8F text on white | 5.20:1 | AA | Lc 75.7 | Fine for body text |
| #536F8F 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
#F4F6F8
oklch(97.2% 0.003 247.9)
-
Step 100
100
#E6EAEF
oklch(93.5% 0.008 253.9)
-
Step 200
200
#D2DAE3
oklch(88.5% 0.015 251.2)
-
Step 300
300
#B4C2D2
oklch(80.8% 0.027 251.7)
-
Step 400
400
#8EA3BC
oklch(70.8% 0.044 252.9)
-
Step 500
500
#718CAB
oklch(63.1% 0.056 252.2)
-
Step 600
600 (this color)
#536F8F
oklch(53.3% 0.06 252.3)
-
Step 700
700
#496380
oklch(49.1% 0.056 251.7)
-
Step 800
800
#3C5168
oklch(42.7% 0.046 251.2)
-
Step 900
900
#344355
oklch(37.7% 0.037 253.3)
-
Step 950
950
#1E2732
oklch(26.9% 0.024 253.7)
#536F8F 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) | #637090 | 0.022 |
| Deuteranopia (no green cones) | #5C6A8E | 0.017 |
| Tritanopia (no blue cones) | #3D767A | 0.052 |
| Achromatopsia (no color) | #6D6D6D | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #536F8F
#536F8F
oklch(53.3% 0.06 252.3)
- #826745
#826745
oklch(53.2% 0.06 72.4)
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 #536F8F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.013
- Dull Blue #49759C ΔE 0.024
- Muted Blue #3B719F ΔE 0.033
- Stormy Blue #507B9C ΔE 0.035
- Cerulean #457B9D ΔE 0.037
- Flat Blue #3C73A8 ΔE 0.043
- Denim #3B638C ΔE 0.048
- Slate #516572 ΔE 0.049
Use #536F8F 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.