#4B5A74
Closest named color: YInMn Blue (#415A77). oklch(46.5% 0.046 261.3), rgb(75, 90, 116).
Aa
White text reads best on this color (6.96:1).
About this color
#4B5A74 is a medium-dark, muted blue. In OKLCH its lightness is 47%, its chroma 0.046 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.014 away. White text reads best on it, at 6.96:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 3.01:1 |
| White text | 6.96:1 |
Values
| HEX | #4B5A74 |
| RGB | rgb(75, 90, 116) |
| HSL | hsl(218, 21%, 37%) |
| OKLCH | oklch(46.5% 0.046 261.3) |
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 #4B5A74 | 6.96:1 | AA | Lc -89.1 | Fine for body text |
| Black text on #4B5A74 | 3.01:1 | AA large text | Lc 19.9 | Dividers and decoration only |
| #4B5A74 text on white | 6.96:1 | AA | Lc 84.1 | Fine for body text |
| #4B5A74 text on black | 3.01:1 | AA large text | Lc -17.9 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D4D9E2
oklch(88.4% 0.013 262.4)
-
Step 300
300
#B9C1D0
oklch(80.9% 0.023 263.2)
-
Step 400
400
#94A1B8
oklch(70.6% 0.037 261.9)
-
Step 500
500
#7A8AA6
oklch(63.1% 0.046 261.6)
-
Step 600
600
#637491
oklch(55.6% 0.05 261)
-
Step 700
700 (this color)
#4B5A74
oklch(46.5% 0.046 261.3)
-
Step 800
800
#434F64
oklch(42.6% 0.038 261.5)
-
Step 900
900
#394252
oklch(37.8% 0.03 261.9)
-
Step 950
950
#212730
oklch(27.1% 0.019 258.4)
#4B5A74 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) | #515B75 | 0.010 |
| Deuteranopia (no green cones) | #4D5873 | 0.006 |
| Tritanopia (no blue cones) | #3F5F63 | 0.040 |
| Achromatopsia (no color) | #595959 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B5A74
#4B5A74
oklch(46.5% 0.046 261.3)
- #67573B
#67573B
oklch(46.5% 0.047 81.1)
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 #4B5A74, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.014
- Dusty Grape #545775 ΔE 0.016
- Dusk #4E5481 ΔE 0.032
- Slate #516572 ΔE 0.037
- Denim #3B638C ΔE 0.043
- Light Navy Blue #2E5A88 ΔE 0.046
- Dusky Blue #475F94 ΔE 0.051
- Denim Blue #3B5B92 ΔE 0.051
Use #4B5A74 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.