#4E638B
Closest named color: Denim (#3B638C). oklch(50% 0.069 262.8), rgb(78, 99, 139).
Aa
White text reads best on this color (6.03:1).
About this color
#4E638B is a medium-dark, muted blue. In OKLCH its lightness is 50%, its chroma 0.069 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.022 away. White text reads best on it, at 6.03:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.48:1 |
| White text | 6.03:1 |
Values
| HEX | #4E638B |
| RGB | rgb(78, 99, 139) |
| HSL | hsl(219, 28%, 43%) |
| OKLCH | oklch(50% 0.069 262.8) |
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 #4E638B | 6.03:1 | AA | Lc -85.3 | Fine for body text |
| Black text on #4E638B | 3.48:1 | AA large text | Lc 24.0 | Dividers and decoration only |
| #4E638B text on white | 6.03:1 | AA | Lc 80.1 | Fine for body text |
| #4E638B text on black | 3.48:1 | AA large text | Lc -21.7 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D3D9E6
oklch(88.5% 0.019 266)
-
Step 300
300
#B5C1D7
oklch(80.9% 0.034 262.7)
-
Step 400
400
#8FA1C3
oklch(70.7% 0.054 263.1)
-
Step 500
500
#738AB4
oklch(63.2% 0.069 262.2)
-
Step 600
600
#5C739F
oklch(55.5% 0.074 262.9)
-
Step 700
700 (this color)
#4E638B
oklch(50% 0.069 262.8)
-
Step 800
800
#3E4F6F
oklch(42.7% 0.058 262.6)
-
Step 900
900
#35425A
oklch(37.8% 0.045 262.4)
-
Step 950
950
#1F2634
oklch(26.8% 0.028 263.9)
#4E638B 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) | #55668D | 0.014 |
| Deuteranopia (no green cones) | #4E608A | 0.009 |
| Tritanopia (no blue cones) | #386B71 | 0.061 |
| Achromatopsia (no color) | #636363 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E638B
#4E638B
oklch(50% 0.069 262.8)
- #765F32
#765F32
oklch(49.8% 0.069 82.8)
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 #4E638B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.022
- Dusky Blue #475F94 ΔE 0.023
- Denim Blue #3B5B92 ΔE 0.039
- Dusty Grape #545775 ΔE 0.043
- Slate #516572 ΔE 0.043
- YInMn Blue #415A77 ΔE 0.043
- Dusk #4E5481 ΔE 0.043
- Muted Blue #3B719F ΔE 0.046
Use #4E638B 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.