#333475
Closest named color: Twilight Blue (#0A437A). oklch(36.2% 0.109 278.8), rgb(51, 52, 117).
Aa
White text reads best on this color (11.11:1).
About this color
#333475 is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.109 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.052 away. White text reads best on it, at 11.11:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 1.88:1 |
| White text | 11.11:1 |
Values
| HEX | #333475 |
| RGB | rgb(51, 52, 117) |
| HSL | hsl(239, 39%, 33%) |
| OKLCH | oklch(36.2% 0.109 278.8) |
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 #333475 | 11.11:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #333475 | 1.88:1 | Fails | Lc 8.4 | Not readable |
| #333475 text on white | 11.11:1 | AAA | Lc 95.5 | Preferred for body text |
| #333475 text on black | 1.88:1 | Fails | Lc 0.0 | 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 900.
-
Step 50
50
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E6E9FA
oklch(93.7% 0.023 277.9)
-
Step 200
200
#D2D7F8
oklch(88.6% 0.046 278.6)
-
Step 300
300
#B4BCF5
oklch(80.9% 0.081 278.2)
-
Step 400
400
#8F97F1
oklch(70.7% 0.131 278.6)
-
Step 500
500
#767AEB
oklch(63.1% 0.167 279)
-
Step 600
600
#6060DA
oklch(55.6% 0.182 278.7)
-
Step 700
700
#504FBD
oklch(49.2% 0.168 278.6)
-
Step 800
800
#414199
oklch(42.7% 0.14 278.7)
-
Step 900
900 (this color)
#333475
oklch(36.2% 0.109 278.8)
-
Step 950
950
#202147
oklch(26.9% 0.069 279.5)
#333475 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) | #0F3E77 | 0.044 |
| Deuteranopia (no green cones) | #043974 | 0.046 |
| Tritanopia (no blue cones) | #14434F | 0.095 |
| Achromatopsia (no color) | #3B3B3B | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #333475
#333475
oklch(36.2% 0.109 278.8)
- #483E00
#483E00
oklch(36.3% 0.075 99)
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 #333475, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.052
- Marine Blue #01386A ΔE 0.054
- Dark Slate Blue #483D8B ΔE 0.057
- Prussian Blue #1D3557 ΔE 0.062
- Cobalt #1E488F ΔE 0.067
- Marine #042E60 ΔE 0.069
- Blueberry #464196 ΔE 0.072
- Dark Grey Blue #29465B ΔE 0.078
Use #333475 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.