#334090
Closest named color: Cobalt (#1E488F). oklch(40.8% 0.132 272.2), rgb(51, 64, 144).
Aa
White text reads best on this color (9.22:1).
About this color
#334090 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.132 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.028 away. White text reads best on it, at 9.22:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.27:1 |
| White text | 9.22:1 |
Values
| HEX | #334090 |
| RGB | rgb(51, 64, 144) |
| HSL | hsl(232, 48%, 38%) |
| OKLCH | oklch(40.8% 0.132 272.2) |
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 #334090 | 9.22:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #334090 | 2.27:1 | Fails | Lc 13.0 | Not readable |
| #334090 text on white | 9.22:1 | AAA | Lc 90.9 | Preferred for body text |
| #334090 text on black | 2.27:1 | Fails | Lc -11.4 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9F9
oklch(93.5% 0.022 272.1)
-
Step 200
200
#CFD8F6
oklch(88.5% 0.042 272.3)
-
Step 300
300
#AFBEF3
oklch(80.9% 0.077 272.3)
-
Step 400
400
#869BEE
oklch(70.8% 0.124 272.1)
-
Step 500
500
#6A80E8
oklch(63.2% 0.157 272.2)
-
Step 600
600
#5366D6
oklch(55.5% 0.172 272.3)
-
Step 700
700
#4454BA
oklch(49.1% 0.161 272.4)
-
Step 800
800 (this color)
#334090
oklch(40.8% 0.132 272.2)
-
Step 900
900
#303B78
oklch(37.7% 0.104 272.8)
-
Step 950
950
#1C2346
oklch(27% 0.065 272.8)
#334090 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) | #064C93 | 0.042 |
| Deuteranopia (no green cones) | #00448E | 0.039 |
| Tritanopia (no blue cones) | #005361 | 0.112 |
| Achromatopsia (no color) | #474747 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334090
#334090
oklch(40.8% 0.132 272.2)
- #5A4800
#5A4800
oklch(40.9% 0.084 92.4)
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 #334090, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.028
- Blueberry #464196 ΔE 0.030
- Dark Slate Blue #483D8B ΔE 0.032
- Dusk Blue #26538D ΔE 0.053
- Sapphire #2138AB ΔE 0.054
- Twilight Blue #0A437A ΔE 0.054
- Light Navy #155084 ΔE 0.055
- Twilight #4E518B ΔE 0.066
Use #334090 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.