#353F67
Closest named color: Dark Grey Blue (#29465B). oklch(37.8% 0.07 272.1), rgb(53, 63, 103).
Aa
White text reads best on this color (10.20:1).
About this color
#353F67 is a dark, muted blue. In OKLCH its lightness is 38%, its chroma 0.070 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.037 away. White text reads best on it, at 10.20:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.05:1 |
| White text | 10.20:1 |
Values
| HEX | #353F67 |
| RGB | rgb(53, 63, 103) |
| HSL | hsl(228, 32%, 31%) |
| OKLCH | oklch(37.8% 0.07 272.1) |
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 #353F67 | 10.20:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #353F67 | 2.05:1 | Fails | Lc 10.3 | Not readable |
| #353F67 text on white | 10.20:1 | AAA | Lc 93.6 | Preferred for body text |
| #353F67 text on black | 2.05:1 | Fails | Lc -8.9 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6E9F4
oklch(93.5% 0.015 273.8)
-
Step 200
200
#D2D8ED
oklch(88.4% 0.03 273.1)
-
Step 300
300
#B4BFE3
oklch(80.8% 0.052 271.8)
-
Step 400
400
#8E9ED5
oklch(70.7% 0.083 271.6)
-
Step 500
500
#7385CA
oklch(63.1% 0.106 271.9)
-
Step 600
600
#5C6DB7
oklch(55.5% 0.117 272.3)
-
Step 700
700
#4C5B9E
oklch(49.1% 0.109 272.3)
-
Step 800
800
#3E4B80
oklch(42.8% 0.089 271.8)
-
Step 900
900 (this color)
#353F67
oklch(37.8% 0.07 272.1)
-
Step 950
950
#1F253C
oklch(27% 0.044 272.1)
#353F67 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) | #304369 | 0.013 |
| Deuteranopia (no green cones) | #2C3F66 | 0.013 |
| Tritanopia (no blue cones) | #23474E | 0.061 |
| Achromatopsia (no color) | #414141 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #353F67
#353F67
oklch(37.8% 0.07 272.1)
- #4F400D
#4F400D
oklch(37.7% 0.069 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 #353F67, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.037
- Twilight Blue #0A437A ΔE 0.048
- Charcoal #264653 ΔE 0.050
- Prussian Blue #1D3557 ΔE 0.054
- Dark Blue Grey #1F3B4D ΔE 0.057
- Marine Blue #01386A ΔE 0.058
- Light Navy #155084 ΔE 0.065
- Onyx #343A40 ΔE 0.067
Use #353F67 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.