#55649E
Closest named color: Dusky Blue (#475F94). oklch(51.7% 0.094 271.8), rgb(85, 100, 158).
Aa
White text reads best on this color (5.67:1).
About this color
#55649E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.094 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.029 away. White text reads best on it, at 5.67:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.70:1 |
| White text | 5.67:1 |
Values
| HEX | #55649E |
| RGB | rgb(85, 100, 158) |
| HSL | hsl(228, 30%, 48%) |
| OKLCH | oklch(51.7% 0.094 271.8) |
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 #55649E | 5.67:1 | AA | Lc -83.6 | Fine for body text |
| Black text on #55649E | 3.70:1 | AA large text | Lc 25.8 | Dividers and decoration only |
| #55649E text on white | 5.67:1 | AA | Lc 78.3 | Fine for body text |
| #55649E text on black | 3.70:1 | AA large text | Lc -23.5 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6EAF3
oklch(93.7% 0.013 266.7)
-
Step 200
200
#D3D9EA
oklch(88.6% 0.024 270.3)
-
Step 300
300
#B6C0DF
oklch(81% 0.045 271.2)
-
Step 400
400
#909ECF
oklch(70.6% 0.074 272.1)
-
Step 500
500
#7586C2
oklch(63.1% 0.093 271.4)
-
Step 600
600
#5E6FAE
oklch(55.6% 0.1 271.4)
-
Step 700
700 (this color)
#55649E
oklch(51.7% 0.094 271.8)
-
Step 800
800
#404C7A
oklch(42.8% 0.078 271.7)
-
Step 900
900
#363F62
oklch(37.6% 0.061 272.2)
-
Step 950
950
#202539
oklch(26.9% 0.038 272.9)
#55649E 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) | #4F6AA0 | 0.017 |
| Deuteranopia (no green cones) | #48649D | 0.017 |
| Tritanopia (no blue cones) | #3B7079 | 0.084 |
| Achromatopsia (no color) | #676767 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55649E
#55649E
oklch(51.7% 0.094 271.8)
- #7C661C
#7C661C
oklch(51.8% 0.094 91.7)
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 #55649E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.029
- French Blue #436BAD ΔE 0.032
- Muted Blue #3B719F ΔE 0.044
- Denim #3B638C ΔE 0.045
- Flat Blue #3C73A8 ΔE 0.046
- Denim Blue #3B5B92 ΔE 0.048
- Dull Blue #49759C ΔE 0.050
- Mid Blue #276AB3 ΔE 0.053
Use #55649E 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.