#55697D
Closest named color: Slate (#516572). oklch(51.2% 0.04 248.6), rgb(85, 105, 125).
Aa
White text reads best on this color (5.67:1).
About this color
#55697D is a medium-dark, muted blue. In OKLCH its lightness is 51%, its chroma 0.040 and its hue 249°. 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 5.67:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.70:1 |
| White text | 5.67:1 |
Values
| HEX | #55697D |
| RGB | rgb(85, 105, 125) |
| HSL | hsl(210, 19%, 41%) |
| OKLCH | oklch(51.2% 0.04 248.6) |
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 #55697D | 5.67:1 | AA | Lc -83.6 | Fine for body text |
| Black text on #55697D | 3.70:1 | AA large text | Lc 25.7 | Dividers and decoration only |
| #55697D text on white | 5.67:1 | AA | Lc 78.4 | Fine for body text |
| #55697D text on black | 3.70:1 | AA large text | Lc -23.4 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAED
oklch(93.6% 0.005 247.9)
-
Step 200
200
#D4DAE0
oklch(88.6% 0.011 247.9)
-
Step 300
300
#B7C2CD
oklch(80.9% 0.02 248.1)
-
Step 400
400
#92A3B3
oklch(70.7% 0.03 246.6)
-
Step 500
500
#778CA1
oklch(63.1% 0.04 248.5)
-
Step 600
600
#60768C
oklch(55.6% 0.043 248.6)
-
Step 700
700 (this color)
#55697D
oklch(51.2% 0.04 248.6)
-
Step 800
800
#415161
oklch(42.8% 0.033 248.6)
-
Step 900
900
#37434F
oklch(37.7% 0.026 248.5)
-
Step 950
950
#20272E
oklch(26.9% 0.016 248.4)
#55697D 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) | #61697E | 0.017 |
| Deuteranopia (no green cones) | #5C657D | 0.015 |
| Tritanopia (no blue cones) | #496E6F | 0.035 |
| Achromatopsia (no color) | #676767 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55697D
#55697D
oklch(51.2% 0.04 248.6)
- #76634E
#76634E
oklch(51.2% 0.04 69.6)
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 #55697D, 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 0.034
- Dim Gray #696969 ΔE 0.041
- Denim #3B638C ΔE 0.047
- Battleship Gray #6C757D ΔE 0.051
- Dull Blue #49759C ΔE 0.052
- Dusty Grape #545775 ΔE 0.052
- YInMn Blue #415A77 ΔE 0.055
Use #55697D 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.