#55667E
Closest named color: Slate (#516572). oklch(50.6% 0.044 257), rgb(85, 102, 126).
Aa
White text reads best on this color (5.85:1).
About this color
#55667E is a medium-dark, muted blue. In OKLCH its lightness is 51%, its chroma 0.044 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.020 away. White text reads best on it, at 5.85:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.58:1 |
| White text | 5.85:1 |
Values
| HEX | #55667E |
| RGB | rgb(85, 102, 126) |
| HSL | hsl(215, 19%, 41%) |
| OKLCH | oklch(50.6% 0.044 257) |
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 #55667E | 5.85:1 | AA | Lc -84.5 | Fine for body text |
| Black text on #55667E | 3.58:1 | AA large text | Lc 24.8 | Dividers and decoration only |
| #55667E text on white | 5.85:1 | AA | Lc 79.3 | Fine for body text |
| #55667E text on black | 3.58:1 | AA large text | Lc -22.5 | 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
#D4DAE1
oklch(88.6% 0.012 252.1)
-
Step 300
300
#B8C1CF
oklch(80.8% 0.022 259.2)
-
Step 400
400
#93A2B6
oklch(70.7% 0.034 255.6)
-
Step 500
500
#798BA4
oklch(63.1% 0.043 256.6)
-
Step 600
600
#62758F
oklch(55.7% 0.046 256.3)
-
Step 700
700 (this color)
#55667E
oklch(50.6% 0.044 257)
-
Step 800
800
#425063
oklch(42.7% 0.036 256.1)
-
Step 900
900
#384251
oklch(37.6% 0.029 258.4)
-
Step 950
950
#21272F
oklch(27% 0.017 255.7)
#55667E 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) | #5E677F | 0.014 |
| Deuteranopia (no green cones) | #59637D | 0.010 |
| Tritanopia (no blue cones) | #496B6E | 0.038 |
| Achromatopsia (no color) | #656565 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55667E
#55667E
oklch(50.6% 0.044 257)
- #736249
#736249
oklch(50.6% 0.043 77.1)
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 #55667E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.020
- Metallic Blue #4F738E ΔE 0.039
- Denim #3B638C ΔE 0.041
- Dusty Grape #545775 ΔE 0.044
- Dim Gray #696969 ΔE 0.046
- YInMn Blue #415A77 ΔE 0.048
- Dusky Blue #475F94 ΔE 0.050
- Dull Blue #49759C ΔE 0.055
Use #55667E 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.