#4B5977
Closest named color: YInMn Blue (#415A77). oklch(46.5% 0.052 265), rgb(75, 89, 119).
Aa
White text reads best on this color (7.01:1).
About this color
#4B5977 is a medium-dark, muted blue. In OKLCH its lightness is 46%, its chroma 0.052 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.013 away. White text reads best on it, at 7.01:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.99:1 |
| White text | 7.01:1 |
Values
| HEX | #4B5977 |
| RGB | rgb(75, 89, 119) |
| HSL | hsl(221, 23%, 38%) |
| OKLCH | oklch(46.5% 0.052 265) |
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 #4B5977 | 7.01:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #4B5977 | 2.99:1 | Fails | Lc 19.8 | Dividers and decoration only |
| #4B5977 text on white | 7.01:1 | AAA | Lc 84.3 | Fine for body text |
| #4B5977 text on black | 2.99:1 | Fails | Lc -17.7 | 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
#E7EAEF
oklch(93.6% 0.007 260.7)
-
Step 200
200
#D5D9E3
oklch(88.5% 0.014 268.5)
-
Step 300
300
#B9C1D1
oklch(81% 0.024 264.4)
-
Step 400
400
#94A1BB
oklch(70.8% 0.041 264.3)
-
Step 500
500
#7A89A9
oklch(63% 0.051 265.2)
-
Step 600
600
#637395
oklch(55.6% 0.057 265)
-
Step 700
700 (this color)
#4B5977
oklch(46.5% 0.052 265)
-
Step 800
800
#434F67
oklch(42.7% 0.043 264)
-
Step 900
900
#394154
oklch(37.6% 0.034 266.9)
-
Step 950
950
#212631
oklch(26.9% 0.022 265.8)
#4B5977 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) | #4F5B78 | 0.009 |
| Deuteranopia (no green cones) | #4B5776 | 0.006 |
| Tritanopia (no blue cones) | #3E5F63 | 0.047 |
| Achromatopsia (no color) | #595959 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B5977
#4B5977
oklch(46.5% 0.052 265)
- #675737
#675737
oklch(46.4% 0.052 84)
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 #4B5977, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.013
- Dusty Grape #545775 ΔE 0.014
- Dusk #4E5481 ΔE 0.025
- Denim #3B638C ΔE 0.041
- Light Navy Blue #2E5A88 ΔE 0.042
- Slate #516572 ΔE 0.042
- Twilight #4E518B ΔE 0.045
- Denim Blue #3B5B92 ΔE 0.046
Use #4B5977 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.