#355E72
Closest named color: YInMn Blue (#415A77). oklch(46% 0.056 230.9), rgb(53, 94, 114).
Aa
White text reads best on this color (7.01:1).
About this color
#355E72 is a medium-dark, muted blue. In OKLCH its lightness is 46%, its chroma 0.056 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.021 away. White text reads best on it, at 7.01:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.99:1 |
| White text | 7.01:1 |
Values
| HEX | #355E72 |
| RGB | rgb(53, 94, 114) |
| HSL | hsl(200, 37%, 33%) |
| OKLCH | oklch(46% 0.056 230.9) |
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 #355E72 | 7.01:1 | AAA | Lc -89.1 | Fine for body text |
| Black text on #355E72 | 2.99:1 | Fails | Lc 19.9 | Dividers and decoration only |
| #355E72 text on white | 7.01:1 | AAA | Lc 84.2 | Fine for body text |
| #355E72 text on black | 2.99:1 | Fails | Lc -17.8 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#D0DBE1
oklch(88.5% 0.015 231.2)
-
Step 300
300
#B0C4CF
oklch(80.9% 0.027 231.7)
-
Step 400
400
#86A6B7
oklch(70.7% 0.043 231.3)
-
Step 500
500
#6690A5
oklch(63% 0.056 230.4)
-
Step 600
600
#4D7A91
oklch(55.6% 0.061 231.6)
-
Step 700
700 (this color)
#355E72
oklch(46% 0.056 230.9)
-
Step 800
800
#335464
oklch(42.7% 0.047 230.3)
-
Step 900
900
#2D4552
oklch(37.6% 0.037 232.7)
-
Step 950
950
#1B2930
oklch(27.1% 0.023 230.3)
#355E72 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) | #545D73 | 0.039 |
| Deuteranopia (no green cones) | #4B5672 | 0.034 |
| Tritanopia (no blue cones) | #126464 | 0.043 |
| Achromatopsia (no color) | #595959 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #355E72
#355E72
oklch(46% 0.056 230.9)
- #724F3B
#724F3B
oklch(46.1% 0.057 50.6)
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 #355E72, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.021
- Petrol #005F6A ΔE 0.036
- Light Navy Blue #2E5A88 ΔE 0.042
- Slate #516572 ΔE 0.043
- Denim #3B638C ΔE 0.044
- Dusty Grape #545775 ΔE 0.045
- Dark Aqua #05696B ΔE 0.047
- Dusk #4E5481 ΔE 0.054
Use #355E72 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.