#536A7E
Closest named color: Slate (#516572). oklch(51.4% 0.042 245), rgb(83, 106, 126).
Aa
White text reads best on this color (5.62:1).
About this color
#536A7E is a medium-dark, muted blue. In OKLCH its lightness is 51%, its chroma 0.042 and its hue 245°. 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 5.62:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.73:1 |
| White text | 5.62:1 |
Values
| HEX | #536A7E |
| RGB | rgb(83, 106, 126) |
| HSL | hsl(208, 21%, 41%) |
| OKLCH | oklch(51.4% 0.042 245) |
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 #536A7E | 5.62:1 | AA | Lc -83.4 | Fine for body text |
| Black text on #536A7E | 3.73:1 | AA large text | Lc 25.9 | Dividers and decoration only |
| #536A7E text on white | 5.62:1 | AA | Lc 78.1 | Fine for body text |
| #536A7E text on black | 3.73:1 | AA large text | Lc -23.7 | 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
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D3DAE0
oklch(88.5% 0.011 243.7)
-
Step 300
300
#B6C2CD
oklch(80.8% 0.02 245.7)
-
Step 400
400
#90A3B4
oklch(70.6% 0.033 245.3)
-
Step 500
500
#758DA1
oklch(63.2% 0.041 243.6)
-
Step 600
600
#5D778C
oklch(55.7% 0.045 243)
-
Step 700
700 (this color)
#536A7E
oklch(51.4% 0.042 245)
-
Step 800
800
#3F5161
oklch(42.6% 0.035 245.6)
-
Step 900
900
#36434F
oklch(37.6% 0.027 246.4)
-
Step 950
950
#20272E
oklch(26.9% 0.016 248.4)
#536A7E 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) | #626A7F | 0.021 |
| Deuteranopia (no green cones) | #5D657E | 0.019 |
| Tritanopia (no blue cones) | #456F70 | 0.036 |
| Achromatopsia (no color) | #676767 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #536A7E
#536A7E
oklch(51.4% 0.042 245)
- #78624E
#78624E
oklch(51.2% 0.041 64)
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 #536A7E, 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 0.031
- Dim Gray #696969 ΔE 0.043
- Denim #3B638C ΔE 0.046
- Dull Blue #49759C ΔE 0.049
- Battleship Gray #6C757D ΔE 0.051
- Muted Blue #3B719F ΔE 0.054
- Dusty Grape #545775 ΔE 0.055
Use #536A7E 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.