#334071
Closest named color: Twilight Blue (#0A437A). oklch(38.5% 0.085 270.8), rgb(51, 64, 113).
Aa
White text reads best on this color (9.94:1).
About this color
#334071 is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.085 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.038 away. White text reads best on it, at 9.94:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.11:1 |
| White text | 9.94:1 |
Values
| HEX | #334071 |
| RGB | rgb(51, 64, 113) |
| HSL | hsl(227, 38%, 32%) |
| OKLCH | oklch(38.5% 0.085 270.8) |
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 #334071 | 9.94:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #334071 | 2.11:1 | Fails | Lc 11.0 | Not readable |
| #334071 text on white | 9.94:1 | AAA | Lc 92.9 | Preferred for body text |
| #334071 text on black | 2.11:1 | Fails | Lc -9.5 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF7
oklch(93.7% 0.018 269.1)
-
Step 200
200
#D0D8F1
oklch(88.4% 0.035 271.5)
-
Step 300
300
#B1BFEB
oklch(80.9% 0.064 271.1)
-
Step 400
400
#899DE1
oklch(70.7% 0.102 271.1)
-
Step 500
500
#6C83D8
oklch(63% 0.131 270.8)
-
Step 600
600
#556BC5
oklch(55.5% 0.141 270.9)
-
Step 700
700
#4659AB
oklch(49.1% 0.132 271)
-
Step 800
800
#39498A
oklch(42.6% 0.109 270.8)
-
Step 900
900 (this color)
#334071
oklch(38.5% 0.085 270.8)
-
Step 950
950
#1D2441
oklch(26.9% 0.055 272)
#334071 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) | #2C4673 | 0.018 |
| Deuteranopia (no green cones) | #254070 | 0.018 |
| Tritanopia (no blue cones) | #164B53 | 0.076 |
| Achromatopsia (no color) | #434343 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334071
#334071
oklch(38.5% 0.085 270.8)
- #544100
#544100
oklch(38.5% 0.079 89.8)
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 #334071, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.038
- Dark Grey Blue #29465B ΔE 0.048
- Cobalt #1E488F ΔE 0.054
- Light Navy #155084 ΔE 0.054
- Dark Slate Blue #483D8B ΔE 0.056
- Marine Blue #01386A ΔE 0.057
- Charcoal #264653 ΔE 0.063
- Prussian Blue #1D3557 ΔE 0.063
Use #334071 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.