#334190
Closest named color: Cobalt (#1E488F). oklch(41% 0.131 271.8), rgb(51, 65, 144).
Aa
White text reads best on this color (9.13:1).
About this color
#334190 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.131 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.027 away. White text reads best on it, at 9.13:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.131) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.29:1 |
| White text | 9.13:1 |
Values
| HEX | #334190 |
| RGB | rgb(51, 65, 144) |
| HSL | hsl(231, 48%, 38%) |
| OKLCH | oklch(41% 0.131 271.8) |
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 #334190 | 9.13:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #334190 | 2.29:1 | Fails | Lc 13.3 | Not readable |
| #334190 text on white | 9.13:1 | AAA | Lc 90.7 | Preferred for body text |
| #334190 text on black | 2.29:1 | Fails | Lc -11.6 | 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
#869BED
oklch(70.7% 0.123 272)
-
Step 500
500
#6980E7
oklch(63.1% 0.156 271.8)
-
Step 600
600
#5267D5
oklch(55.6% 0.17 271.7)
-
Step 700
700
#4355B9
oklch(49.1% 0.158 271.7)
-
Step 800
800 (this color)
#334190
oklch(41% 0.131 271.8)
-
Step 900
900
#2F3C77
oklch(37.8% 0.101 271.4)
-
Step 950
950
#1C2346
oklch(27% 0.065 272.8)
#334190 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) | #0C4C93 | 0.039 |
| Deuteranopia (no green cones) | #00448E | 0.039 |
| Tritanopia (no blue cones) | #005462 | 0.111 |
| Achromatopsia (no color) | #484848 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334190
#334190
oklch(41% 0.131 271.8)
- #5B4800
#5B4800
oklch(41% 0.084 91.5)
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 #334190, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.027
- Blueberry #464196 ΔE 0.030
- Dark Slate Blue #483D8B ΔE 0.032
- Dusk Blue #26538D ΔE 0.051
- Light Navy #155084 ΔE 0.053
- Twilight Blue #0A437A ΔE 0.054
- Sapphire #2138AB ΔE 0.055
- Twilight #4E518B ΔE 0.064
Use #334190 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.