#355667
Closest named color: YInMn Blue (#415A77). oklch(43.5% 0.048 231.8), rgb(53, 86, 103).
Aa
White text reads best on this color (7.84:1).
About this color
#355667 is a dark, muted blue. In OKLCH its lightness is 43%, its chroma 0.048 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.032 away. White text reads best on it, at 7.84:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.67:1 |
| White text | 7.84:1 |
Values
| HEX | #355667 |
| RGB | rgb(53, 86, 103) |
| HSL | hsl(200, 32%, 31%) |
| OKLCH | oklch(43.5% 0.048 231.8) |
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 #355667 | 7.84:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #355667 | 2.67:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #355667 text on white | 7.84:1 | AAA | Lc 87.1 | Fine for body text |
| #355667 text on black | 2.67:1 | Fails | Lc -15.0 | Not readable |
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 800.
-
Step 50
50
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#CFDBE2
oklch(88.4% 0.016 233)
-
Step 300
300
#AFC4D0
oklch(80.8% 0.029 232.8)
-
Step 400
400
#85A6B8
oklch(70.7% 0.045 232.1)
-
Step 500
500
#6690A6
oklch(63.1% 0.057 231.6)
-
Step 600
600
#4C7A92
oklch(55.6% 0.063 232.2)
-
Step 700
700
#3D677C
oklch(49.2% 0.058 231.3)
-
Step 800
800 (this color)
#355667
oklch(43.5% 0.048 231.8)
-
Step 900
900
#2D4552
oklch(37.6% 0.037 232.7)
-
Step 950
950
#1B2930
oklch(27.1% 0.023 230.3)
#355667 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) | #4E5568 | 0.033 |
| Deuteranopia (no green cones) | #474F67 | 0.030 |
| Tritanopia (no blue cones) | #1E5B5B | 0.037 |
| Achromatopsia (no color) | #525252 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #355667
#355667
oklch(43.5% 0.048 231.8)
- #674A39
#674A39
oklch(43.6% 0.048 51.5)
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 #355667, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.032
- Petrol #005F6A ΔE 0.039
- Dark Slate Gray #2F4F4F ΔE 0.043
- Deep Teal #00555A ΔE 0.045
- Dusty Grape #545775 ΔE 0.050
- Light Navy Blue #2E5A88 ΔE 0.053
- Dark Grey Blue #29465B ΔE 0.055
- Deep Sea Blue #015482 ΔE 0.056
Use #355667 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.