#353D57
Closest named color: Dark Grey Blue (#29465B). oklch(36.4% 0.046 270.8), rgb(53, 61, 87).
Aa
White text reads best on this color (10.73:1).
About this color
#353D57 is a dark, muted blue. In OKLCH its lightness is 36%, its chroma 0.046 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.030 away. White text reads best on it, at 10.73:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.95:1 |
| White text | 10.73:1 |
Values
| HEX | #353D57 |
| RGB | rgb(53, 61, 87) |
| HSL | hsl(226, 24%, 27%) |
| OKLCH | oklch(36.4% 0.046 270.8) |
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 #353D57 | 10.73:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #353D57 | 1.95:1 | Fails | Lc 9.0 | Not readable |
| #353D57 text on white | 10.73:1 | AAA | Lc 94.9 | Preferred for body text |
| #353D57 text on black | 1.95:1 | Fails | Lc -7.8 | 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 900.
-
Step 50
50
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7EAF1
oklch(93.7% 0.01 267.4)
-
Step 200
200
#D4D9E6
oklch(88.5% 0.019 269.1)
-
Step 300
300
#B8C0D8
oklch(80.9% 0.035 271)
-
Step 400
400
#939FC4
oklch(70.6% 0.056 270.9)
-
Step 500
500
#7987B5
oklch(63% 0.071 271.2)
-
Step 600
600
#6271A1
oklch(55.6% 0.077 270.5)
-
Step 700
700
#515E8A
oklch(49% 0.073 270.9)
-
Step 800
800
#434D70
oklch(42.7% 0.06 271.5)
-
Step 900
900 (this color)
#353D57
oklch(36.4% 0.046 270.8)
-
Step 950
950
#212635
oklch(27.1% 0.029 270.1)
#353D57 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) | #353F58 | 0.006 |
| Deuteranopia (no green cones) | #323C56 | 0.006 |
| Tritanopia (no blue cones) | #2B4246 | 0.041 |
| Achromatopsia (no color) | #3E3E3E | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #353D57
#353D57
oklch(36.4% 0.046 270.8)
- #473D20
#473D20
oklch(36.3% 0.046 91)
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 #353D57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.030
- Charcoal #264653 ΔE 0.036
- Dark Blue Grey #1F3B4D ΔE 0.036
- Onyx #343A40 ΔE 0.039
- Charcoal Grey #3C4142 ΔE 0.044
- Prussian Blue #1D3557 ΔE 0.045
- Gunmetal #293241 ΔE 0.052
- Midnight Green #073B4C ΔE 0.055
Use #353D57 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.