#536787
Closest named color: Slate (#516572). oklch(51% 0.057 259.7), rgb(83, 103, 135).
Aa
White text reads best on this color (5.74:1).
About this color
#536787 is a medium-dark, muted blue. In OKLCH its lightness is 51%, its chroma 0.057 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.034 away. White text reads best on it, at 5.74:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.65:1 |
| White text | 5.74:1 |
Values
| HEX | #536787 |
| RGB | rgb(83, 103, 135) |
| HSL | hsl(217, 24%, 43%) |
| OKLCH | oklch(51% 0.057 259.7) |
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 #536787 | 5.74:1 | AA | Lc -83.9 | Fine for body text |
| Black text on #536787 | 3.65:1 | AA large text | Lc 25.4 | Dividers and decoration only |
| #536787 text on white | 5.74:1 | AA | Lc 78.7 | Fine for body text |
| #536787 text on black | 3.65:1 | AA large text | Lc -23.1 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAEF
oklch(93.6% 0.007 260.7)
-
Step 200
200
#D3DAE3
oklch(88.6% 0.015 254.6)
-
Step 300
300
#B6C1D3
oklch(80.8% 0.028 260.3)
-
Step 400
400
#91A2BD
oklch(70.8% 0.044 259.6)
-
Step 500
500
#768BAC
oklch(63.2% 0.056 259.3)
-
Step 600
600
#5E7497
oklch(55.5% 0.061 259.5)
-
Step 700
700 (this color)
#536787
oklch(51% 0.057 259.7)
-
Step 800
800
#405069
oklch(42.8% 0.046 259.2)
-
Step 900
900
#364255
oklch(37.7% 0.036 259.5)
-
Step 950
950
#202732
oklch(27.1% 0.023 259.3)
#536787 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) | #5C6988 | 0.014 |
| Deuteranopia (no green cones) | #566486 | 0.009 |
| Tritanopia (no blue cones) | #426E72 | 0.051 |
| Achromatopsia (no color) | #666666 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #536787
#536787
oklch(51% 0.057 259.7)
- #786340
#786340
oklch(51.2% 0.057 79.7)
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 #536787, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.034
- Denim #3B638C ΔE 0.034
- Metallic Blue #4F738E ΔE 0.034
- Dusky Blue #475F94 ΔE 0.040
- Dull Blue #49759C ΔE 0.045
- Muted Blue #3B719F ΔE 0.045
- Dusty Grape #545775 ΔE 0.049
- YInMn Blue #415A77 ΔE 0.051
Use #536787 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.