#3351BE
Closest named color: Blue Blue (#2242C7). oklch(47.9% 0.175 267.6), rgb(51, 81, 190).
Aa
White text reads best on this color (6.85:1).
About this color
#3351BE is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.175 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.043 away. White text reads best on it, at 6.85:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.175) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.06:1 |
| White text | 6.85:1 |
Values
| HEX | #3351BE |
| RGB | rgb(51, 81, 190) |
| HSL | hsl(227, 58%, 47%) |
| OKLCH | oklch(47.9% 0.175 267.6) |
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 #3351BE | 6.85:1 | AA | Lc -88.2 | Fine for body text |
| Black text on #3351BE | 3.06:1 | AA large text | Lc 20.8 | Dividers and decoration only |
| #3351BE text on white | 6.85:1 | AA | Lc 83.2 | Fine for body text |
| #3351BE text on black | 3.06:1 | AA large text | Lc -18.7 | 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
#E3EAFB
oklch(93.7% 0.024 267.9)
-
Step 200
200
#CBD9F9
oklch(88.5% 0.047 266.7)
-
Step 300
300
#A9BFF8
oklch(80.8% 0.085 268.1)
-
Step 400
400
#7C9CF5
oklch(70.7% 0.136 267.9)
-
Step 500
500
#5C81F1
oklch(63.2% 0.173 267.5)
-
Step 600
600
#4467DF
oklch(55.6% 0.187 267.6)
-
Step 700
700 (this color)
#3351BE
oklch(47.9% 0.175 267.6)
-
Step 800
800
#2D469D
oklch(42.7% 0.145 267.7)
-
Step 900
900
#273C7D
oklch(37.7% 0.113 267.3)
-
Step 950
950
#172449
oklch(27.1% 0.071 267.1)
#3351BE 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) | #0061C2 | 0.043 |
| Deuteranopia (no green cones) | #0054BC | 0.029 |
| Tritanopia (no blue cones) | #006C7F | 0.140 |
| Achromatopsia (no color) | #5A5A5A | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3351BE
#3351BE
oklch(47.9% 0.175 267.6)
- #755900
#755900
oklch(48% 0.098 87.3)
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 #3351BE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.043
- Majorelle Blue #3F37C9 ΔE 0.056
- Warm Blue #4B57DB ΔE 0.057
- Blue With A Hint Of Purple #533CC6 ΔE 0.058
- Blurple #5539CC ΔE 0.066
- Iris #6258C4 ΔE 0.068
- Mid Blue #276AB3 ΔE 0.069
- Bluey Purple #6241C7 ΔE 0.071
Use #3351BE 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.