#334083
Closest named color: Cobalt (#1E488F). oklch(39.8% 0.113 272.1), rgb(51, 64, 131).
Aa
White text reads best on this color (9.53:1).
About this color
#334083 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.113 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.033 away. White text reads best on it, at 9.53:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.20:1 |
| White text | 9.53:1 |
Values
| HEX | #334083 |
| RGB | rgb(51, 64, 131) |
| HSL | hsl(230, 44%, 36%) |
| OKLCH | oklch(39.8% 0.113 272.1) |
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 #334083 | 9.53:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #334083 | 2.20:1 | Fails | Lc 12.1 | Not readable |
| #334083 text on white | 9.53:1 | AAA | Lc 91.8 | Preferred for body text |
| #334083 text on black | 2.20:1 | Fails | Lc -10.5 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9FB
oklch(93.6% 0.025 273.5)
-
Step 200
200
#CED8F9
oklch(88.5% 0.047 272.1)
-
Step 300
300
#ADBEF8
oklch(80.9% 0.084 271.8)
-
Step 400
400
#839AF5
oklch(70.7% 0.136 271.8)
-
Step 500
500
#677EF1
oklch(63.2% 0.173 272.1)
-
Step 600
600
#5064DF
oklch(55.6% 0.187 271.9)
-
Step 700
700
#4152C2
oklch(49.2% 0.175 271.8)
-
Step 800
800
#36449D
oklch(42.8% 0.145 272.1)
-
Step 900
900 (this color)
#334083
oklch(39.8% 0.113 272.1)
-
Step 950
950
#1B2349
oklch(27.1% 0.071 272)
#334083 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) | #1D4985 | 0.031 |
| Deuteranopia (no green cones) | #0E4282 | 0.035 |
| Tritanopia (no blue cones) | #004F5B | 0.099 |
| Achromatopsia (no color) | #454545 | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334083
#334083
oklch(39.8% 0.113 272.1)
- #574500
#574500
oklch(39.8% 0.081 91.8)
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 #334083, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.033
- Dark Slate Blue #483D8B ΔE 0.035
- Twilight Blue #0A437A ΔE 0.041
- Blueberry #464196 ΔE 0.043
- Light Navy #155084 ΔE 0.049
- Dusk Blue #26538D ΔE 0.054
- Deep Sea Blue #015482 ΔE 0.063
- Twilight #4E518B ΔE 0.066
Use #334083 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.