#334EA3
Closest named color: Blueberry (#464196). oklch(45.2% 0.141 267.3), rgb(51, 78, 163).
Aa
White text reads best on this color (7.61:1).
About this color
#334EA3 is a medium-dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.141 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.042 away. White text reads best on it, at 7.61:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.75:1 |
| White text | 7.61:1 |
Values
| HEX | #334EA3 |
| RGB | rgb(51, 78, 163) |
| HSL | hsl(226, 52%, 42%) |
| OKLCH | oklch(45.2% 0.141 267.3) |
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 #334EA3 | 7.61:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #334EA3 | 2.75:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #334EA3 text on white | 7.61:1 | AAA | Lc 86.1 | Fine for body text |
| #334EA3 text on black | 2.75:1 | Fails | Lc -16.0 | Dividers and decoration only |
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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CCD9F8
oklch(88.5% 0.045 267.4)
-
Step 300
300
#A9C0F7
oklch(81% 0.082 266.9)
-
Step 400
400
#7C9DF3
oklch(70.8% 0.132 267.1)
-
Step 500
500
#5C81EE
oklch(63% 0.169 267.3)
-
Step 600
600
#4468DD
oklch(55.6% 0.183 267.3)
-
Step 700
700
#3656C0
oklch(49.2% 0.17 267.1)
-
Step 800
800 (this color)
#334EA3
oklch(45.2% 0.141 267.3)
-
Step 900
900
#283C7B
oklch(37.6% 0.11 267.6)
-
Step 950
950
#172448
oklch(27% 0.069 266.8)
#334EA3 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) | #1A59A6 | 0.032 |
| Deuteranopia (no green cones) | #004FA1 | 0.033 |
| Tritanopia (no blue cones) | #006271 | 0.115 |
| Achromatopsia (no color) | #545454 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334EA3
#334EA3
oklch(45.2% 0.141 267.3)
- #6C5200
#6C5200
oklch(45.3% 0.093 87.4)
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 #334EA3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.042
- Dusk Blue #26538D ΔE 0.042
- Cobalt #1E488F ΔE 0.043
- Denim Blue #3B5B92 ΔE 0.051
- Twilight #4E518B ΔE 0.054
- Dark Slate Blue #483D8B ΔE 0.059
- Light Navy #155084 ΔE 0.060
- Light Navy Blue #2E5A88 ΔE 0.060
Use #334EA3 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.