#334AAF
Closest named color: Blue Blue (#2242C7). oklch(45.3% 0.163 269.1), rgb(51, 74, 175).
Aa
White text reads best on this color (7.66:1).
About this color
#334AAF is a medium-dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.163 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.046 away. White text reads best on it, at 7.66:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.73:1 |
| White text | 7.66:1 |
Values
| HEX | #334AAF |
| RGB | rgb(51, 74, 175) |
| HSL | hsl(229, 55%, 44%) |
| OKLCH | oklch(45.3% 0.163 269.1) |
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 #334AAF | 7.66:1 | AAA | Lc -91.0 | Preferred for body text |
| Black text on #334AAF | 2.73:1 | Fails | Lc 17.8 | Dividers and decoration only |
| #334AAF text on white | 7.66:1 | AAA | Lc 86.2 | Fine for body text |
| #334AAF text on black | 2.73:1 | Fails | Lc -15.9 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFD
oklch(93.7% 0.027 267.5)
-
Step 200
200
#CBD8FD
oklch(88.4% 0.053 270)
-
Step 300
300
#A7BEFF
oklch(80.8% 0.096 269.2)
-
Step 400
400
#7A9AFF
oklch(70.7% 0.152 269)
-
Step 500
500
#5B7DFD
oklch(63.1% 0.194 269)
-
Step 600
600
#4461ED
oklch(55.5% 0.213 269.3)
-
Step 700
700
#364FCE
oklch(49% 0.197 269.1)
-
Step 800
800 (this color)
#334AAF
oklch(45.3% 0.163 269.1)
-
Step 900
900
#273984
oklch(37.6% 0.128 269.2)
-
Step 950
950
#17224D
oklch(26.9% 0.081 269.5)
#334AAF 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) | #0059B2 | 0.043 |
| Deuteranopia (no green cones) | #004EAD | 0.033 |
| Tritanopia (no blue cones) | #006375 | 0.132 |
| Achromatopsia (no color) | #535353 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334AAF
#334AAF
oklch(45.3% 0.163 269.1)
- #6B5300
#6B5300
oklch(45.4% 0.093 89.3)
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 #334AAF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.046
- Blueberry #464196 ΔE 0.049
- Sapphire #2138AB ΔE 0.051
- Majorelle Blue #3F37C9 ΔE 0.057
- Cobalt #1E488F ΔE 0.058
- Blue With A Hint Of Purple #533CC6 ΔE 0.062
- Dusk Blue #26538D ΔE 0.064
- Dark Slate Blue #483D8B ΔE 0.069
Use #334AAF 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.