#3451D4
Closest named color: Warm Blue (#4B57DB). oklch(49.8% 0.203 268.2), rgb(52, 81, 212).
Aa
White text reads best on this color (6.41:1).
About this color
#3451D4 is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.203 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.034 away. White text reads best on it, at 6.41:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.203) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.27:1 |
| White text | 6.41:1 |
Values
| HEX | #3451D4 |
| RGB | rgb(52, 81, 212) |
| HSL | hsl(229, 65%, 52%) |
| OKLCH | oklch(49.8% 0.203 268.2) |
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 #3451D4 | 6.41:1 | AA | Lc -86.3 | Fine for body text |
| Black text on #3451D4 | 3.27:1 | AA large text | Lc 22.8 | Dividers and decoration only |
| #3451D4 text on white | 6.41:1 | AA | Lc 81.2 | Fine for body text |
| #3451D4 text on black | 3.27:1 | AA large text | Lc -20.7 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2EAFE
oklch(93.7% 0.028 268.4)
-
Step 200
200
#CAD9FE
oklch(88.6% 0.054 267.9)
-
Step 300
300
#A6BFFF
oklch(80.9% 0.095 267.8)
-
Step 400
400
#789AFF
oklch(70.6% 0.153 268.3)
-
Step 500
500
#587DFF
oklch(63.1% 0.197 268.3)
-
Step 600
600
#3F61F1
oklch(55.6% 0.219 268.1)
-
Step 700
700 (this color)
#3451D4
oklch(49.8% 0.203 268.2)
-
Step 800
800
#2942A9
oklch(42.7% 0.168 268)
-
Step 900
900
#253986
oklch(37.7% 0.131 268.4)
-
Step 950
950
#15224E
oklch(26.9% 0.083 268)
#3451D4 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) | #0066D8 | 0.051 |
| Deuteranopia (no green cones) | #0057D1 | 0.029 |
| Tritanopia (no blue cones) | #00738B | 0.160 |
| Achromatopsia (no color) | #5F5F5F | 0.204 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3451D4
#3451D4
oklch(49.8% 0.203 268.2)
- #7B5E00
#7B5E00
oklch(49.8% 0.102 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 #3451D4, closest first.
No curated palette has a color within ΔE 0.04 of #3451D4.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.034
- Azul #1D5DEC ΔE 0.046
- Blue Blue #2242C7 ΔE 0.046
- Majorelle Blue #3F37C9 ΔE 0.055
- Blue With A Hint Of Purple #533CC6 ΔE 0.059
- Neon Blue #4361EE ΔE 0.059
- Blurple #5539CC ΔE 0.061
- Royal Blue #4169E1 ΔE 0.064
Use #3451D4 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.