#555A76
Closest named color: Dusty Grape (#545775). oklch(47.4% 0.046 276.6), rgb(85, 90, 118).
Aa
White text reads best on this color (6.75:1).
About this color
#555A76 is a medium-dark, muted blue. In OKLCH its lightness is 47%, its chroma 0.046 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.009 away. White text reads best on it, at 6.75:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.11:1 |
| White text | 6.75:1 |
Values
| HEX | #555A76 |
| RGB | rgb(85, 90, 118) |
| HSL | hsl(231, 16%, 40%) |
| OKLCH | oklch(47.4% 0.046 276.6) |
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 #555A76 | 6.75:1 | AA | Lc -88.3 | Fine for body text |
| Black text on #555A76 | 3.11:1 | AA large text | Lc 20.8 | Dividers and decoration only |
| #555A76 text on white | 6.75:1 | AA | Lc 83.3 | Fine for body text |
| #555A76 text on black | 3.11:1 | AA large text | Lc -18.7 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E8E9EE
oklch(93.5% 0.007 277.2)
-
Step 200
200
#D7D9E1
oklch(88.6% 0.011 274.9)
-
Step 300
300
#BCC0CF
oklch(80.9% 0.021 274)
-
Step 400
400
#9A9FB7
oklch(70.6% 0.035 276.2)
-
Step 500
500
#8287A5
oklch(63% 0.045 277.6)
-
Step 600
600
#6B7190
oklch(55.5% 0.049 276.2)
-
Step 700
700 (this color)
#555A76
oklch(47.4% 0.046 276.6)
-
Step 800
800
#494D64
oklch(42.6% 0.039 276.9)
-
Step 900
900
#3D4051
oklch(37.6% 0.029 277.1)
-
Step 950
950
#242630
oklch(27.1% 0.019 276.2)
#555A76 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) | #525D77 | 0.009 |
| Deuteranopia (no green cones) | #505A75 | 0.008 |
| Tritanopia (no blue cones) | #4D5F64 | 0.040 |
| Achromatopsia (no color) | #5B5B5B | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #555A76
#555A76
oklch(47.4% 0.046 276.6)
- #635C3E
#635C3E
oklch(47.3% 0.046 96.6)
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 #555A76, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.009
- YInMn Blue #415A77 ΔE 0.028
- Dusk #4E5481 ΔE 0.031
- Slate #516572 ΔE 0.036
- Denim #3B638C ΔE 0.047
- Dusky Blue #475F94 ΔE 0.049
- Twilight #4E518B ΔE 0.050
- Denim Blue #3B5B92 ΔE 0.055
Use #555A76 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.