#4B5370
Closest named color: Dusty Grape (#545775). oklch(44.7% 0.049 272.4), rgb(75, 83, 112).
Aa
White text reads best on this color (7.58:1).
About this color
#4B5370 is a dark, muted blue. In OKLCH its lightness is 45%, its chroma 0.049 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.020 away. White text reads best on it, at 7.58:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.77:1 |
| White text | 7.58:1 |
Values
| HEX | #4B5370 |
| RGB | rgb(75, 83, 112) |
| HSL | hsl(227, 20%, 37%) |
| OKLCH | oklch(44.7% 0.049 272.4) |
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 #4B5370 | 7.58:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #4B5370 | 2.77:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #4B5370 text on white | 7.58:1 | AAA | Lc 86.3 | Fine for body text |
| #4B5370 text on black | 2.77:1 | Fails | Lc -15.7 | 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 800.
-
Step 50
50
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E8EAF0
oklch(93.7% 0.008 271.3)
-
Step 200
200
#D5D9E4
oklch(88.5% 0.016 270)
-
Step 300
300
#BAC0D4
oklch(80.9% 0.029 272.4)
-
Step 400
400
#969FBE
oklch(70.6% 0.046 272.4)
-
Step 500
500
#7D88AD
oklch(63.1% 0.057 271.8)
-
Step 600
600
#667199
oklch(55.5% 0.064 272.3)
-
Step 700
700
#555F83
oklch(49.2% 0.059 272.1)
-
Step 800
800 (this color)
#4B5370
oklch(44.7% 0.049 272.4)
-
Step 900
900
#3A4056
oklch(37.5% 0.039 272.6)
-
Step 950
950
#222632
oklch(27% 0.023 270.4)
#4B5370 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) | #4A5671 | 0.009 |
| Deuteranopia (no green cones) | #47536F | 0.006 |
| Tritanopia (no blue cones) | #41595D | 0.044 |
| Achromatopsia (no color) | #545454 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B5370
#4B5370
oklch(44.7% 0.049 272.4)
- #5E5434
#5E5434
oklch(44.7% 0.049 92.7)
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 #4B5370, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.020
- YInMn Blue #415A77 ΔE 0.023
- Dusk #4E5481 ΔE 0.029
- Twilight #4E518B ΔE 0.047
- Light Navy Blue #2E5A88 ΔE 0.049
- Slate #516572 ΔE 0.056
- Denim Blue #3B5B92 ΔE 0.057
- Denim #3B638C ΔE 0.057
Use #4B5370 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.