#334479
Closest named color: Twilight Blue (#0A437A). oklch(40% 0.092 268.6), rgb(51, 68, 121).
Aa
White text reads best on this color (9.35:1).
About this color
#334479 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.092 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.037 away. White text reads best on it, at 9.35:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.24:1 |
| White text | 9.35:1 |
Values
| HEX | #334479 |
| RGB | rgb(51, 68, 121) |
| HSL | hsl(225, 41%, 34%) |
| OKLCH | oklch(40% 0.092 268.6) |
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 #334479 | 9.35:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #334479 | 2.24:1 | Fails | Lc 12.5 | Not readable |
| #334479 text on white | 9.35:1 | AAA | Lc 91.5 | Preferred for body text |
| #334479 text on black | 2.24:1 | Fails | Lc -10.9 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF8
oklch(93.7% 0.02 267.3)
-
Step 200
200
#CED9F3
oklch(88.5% 0.038 267.3)
-
Step 300
300
#AEC0EE
oklch(81% 0.068 268.2)
-
Step 400
400
#849DE6
oklch(70.6% 0.111 269)
-
Step 500
500
#6683DE
oklch(63% 0.141 268.8)
-
Step 600
600
#4E6BCC
oklch(55.6% 0.153 268.5)
-
Step 700
700
#3F59B1
oklch(49.1% 0.143 268.4)
-
Step 800
800
#34498F
oklch(42.7% 0.118 268.5)
-
Step 900
900 (this color)
#334479
oklch(40% 0.092 268.6)
-
Step 950
950
#1B2443
oklch(26.9% 0.059 269.9)
#334479 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) | #2D4A7B | 0.018 |
| Deuteranopia (no green cones) | #254478 | 0.017 |
| Tritanopia (no blue cones) | #0A5058 | 0.084 |
| Achromatopsia (no color) | #474747 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334479
#334479
oklch(40% 0.092 268.6)
- #5A4400
#5A4400
oklch(39.9% 0.082 87.6)
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 #334479, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.037
- Cobalt #1E488F ΔE 0.041
- Light Navy #155084 ΔE 0.041
- Dark Slate Blue #483D8B ΔE 0.048
- Dusk Blue #26538D ΔE 0.050
- Deep Sea Blue #015482 ΔE 0.053
- Dark Grey Blue #29465B ΔE 0.056
- Blueberry #464196 ΔE 0.058
Use #334479 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.