#4B6881
Closest named color: Slate (#516572). oklch(50.5% 0.053 245.1), rgb(75, 104, 129).
Aa
White text reads best on this color (5.83:1).
About this color
#4B6881 is a medium-dark, muted blue. In OKLCH its lightness is 50%, its chroma 0.053 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.024 away. White text reads best on it, at 5.83:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.59:1 |
| White text | 5.83:1 |
Values
| HEX | #4B6881 |
| RGB | rgb(75, 104, 129) |
| HSL | hsl(208, 26%, 40%) |
| OKLCH | oklch(50.5% 0.053 245.1) |
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 #4B6881 | 5.83:1 | AA | Lc -84.4 | Fine for body text |
| Black text on #4B6881 | 3.59:1 | AA large text | Lc 24.9 | Dividers and decoration only |
| #4B6881 text on white | 5.83:1 | AA | Lc 79.2 | Fine for body text |
| #4B6881 text on black | 3.59:1 | AA large text | Lc -22.6 | 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
#F4F6F8
oklch(97.2% 0.003 247.9)
-
Step 100
100
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D2DAE2
oklch(88.5% 0.014 248)
-
Step 300
300
#B4C3D0
oklch(81% 0.025 244.2)
-
Step 400
400
#8CA4B9
oklch(70.7% 0.041 244.8)
-
Step 500
500
#6F8DA7
oklch(63% 0.052 244.9)
-
Step 600
600
#577793
oklch(55.6% 0.057 245.5)
-
Step 700
700 (this color)
#4B6881
oklch(50.5% 0.053 245.1)
-
Step 800
800
#3B5266
oklch(42.8% 0.044 245.3)
-
Step 900
900
#324453
oklch(37.8% 0.035 244)
-
Step 950
950
#1E2830
oklch(27.1% 0.02 242.7)
#4B6881 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) | #5E6882 | 0.026 |
| Deuteranopia (no green cones) | #576281 | 0.023 |
| Tritanopia (no blue cones) | #376E70 | 0.044 |
| Achromatopsia (no color) | #656565 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B6881
#4B6881
oklch(50.5% 0.053 245.1)
- #7A5F44
#7A5F44
oklch(50.6% 0.053 66.1)
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 #4B6881, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.024
- Denim #3B638C ΔE 0.033
- Metallic Blue #4F738E ΔE 0.035
- YInMn Blue #415A77 ΔE 0.046
- Dusky Blue #475F94 ΔE 0.047
- Muted Blue #3B719F ΔE 0.049
- Dusty Grape #545775 ΔE 0.049
- Dull Blue #49759C ΔE 0.050
Use #4B6881 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.