#3351B2
Closest named color: Blue Blue (#2242C7). oklch(46.9% 0.158 267.1), rgb(51, 81, 178).
Aa
White text reads best on this color (7.09:1).
About this color
#3351B2 is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.158 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.053 away. White text reads best on it, at 7.09:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.158) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.96:1 |
| White text | 7.09:1 |
Values
| HEX | #3351B2 |
| RGB | rgb(51, 81, 178) |
| HSL | hsl(226, 55%, 45%) |
| OKLCH | oklch(46.9% 0.158 267.1) |
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 #3351B2 | 7.09:1 | AAA | Lc -89.1 | Fine for body text |
| Black text on #3351B2 | 2.96:1 | Fails | Lc 19.9 | Dividers and decoration only |
| #3351B2 text on white | 7.09:1 | AAA | Lc 84.2 | Fine for body text |
| #3351B2 text on black | 2.96:1 | Fails | Lc -17.8 | 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 700.
-
Step 50
50
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAF9
oklch(93.6% 0.022 265.8)
-
Step 200
200
#CCD9F6
oklch(88.5% 0.042 266.3)
-
Step 300
300
#AAC0F3
oklch(80.9% 0.076 266.5)
-
Step 400
400
#7E9DED
oklch(70.6% 0.123 267.1)
-
Step 500
500
#5F83E7
oklch(63.1% 0.156 267)
-
Step 600
600
#476AD6
oklch(55.7% 0.171 267.2)
-
Step 700
700 (this color)
#3351B2
oklch(46.9% 0.158 267.1)
-
Step 800
800
#2F4896
oklch(42.7% 0.131 267.3)
-
Step 900
900
#293D77
oklch(37.6% 0.102 267.1)
-
Step 950
950
#182446
oklch(26.9% 0.065 267.3)
#3351B2 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) | #015EB5 | 0.039 |
| Deuteranopia (no green cones) | #0053B0 | 0.030 |
| Tritanopia (no blue cones) | #006879 | 0.127 |
| Achromatopsia (no color) | #585858 | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3351B2
#3351B2
oklch(46.9% 0.158 267.1)
- #725600
#725600
oklch(46.9% 0.096 86.6)
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 #3351B2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.053
- Blueberry #464196 ΔE 0.060
- Denim Blue #3B5B92 ΔE 0.063
- Dusk Blue #26538D ΔE 0.063
- Cobalt #1E488F ΔE 0.066
- Majorelle Blue #3F37C9 ΔE 0.066
- Mid Blue #276AB3 ΔE 0.066
- Blue With A Hint Of Purple #533CC6 ΔE 0.066
Use #3351B2 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.