#4253B2
Closest named color: Iris (#6258C4). oklch(48.2% 0.151 271.9), rgb(66, 83, 178).
Aa
White text reads best on this color (6.74:1).
About this color
#4253B2 is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.151 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.057 away. White text reads best on it, at 6.74:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.11:1 |
| White text | 6.74:1 |
Values
| HEX | #4253B2 |
| RGB | rgb(66, 83, 178) |
| HSL | hsl(231, 46%, 48%) |
| OKLCH | oklch(48.2% 0.151 271.9) |
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 #4253B2 | 6.74:1 | AA | Lc -88.0 | Fine for body text |
| Black text on #4253B2 | 3.11:1 | AA large text | Lc 21.1 | Dividers and decoration only |
| #4253B2 text on white | 6.74:1 | AA | Lc 82.9 | Fine for body text |
| #4253B2 text on black | 3.11:1 | AA large text | Lc -19.0 | 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 700.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F9
oklch(93.6% 0.022 274.7)
-
Step 200
200
#CFD8F5
oklch(88.4% 0.041 271.9)
-
Step 300
300
#B0BEF1
oklch(80.8% 0.074 272.7)
-
Step 400
400
#879CEA
oklch(70.8% 0.117 271.7)
-
Step 500
500
#6A81E3
oklch(63.1% 0.149 271.6)
-
Step 600
600
#5468D1
oklch(55.6% 0.162 272)
-
Step 700
700 (this color)
#4253B2
oklch(48.2% 0.151 271.9)
-
Step 800
800
#384793
oklch(42.8% 0.126 271.7)
-
Step 900
900
#303C75
oklch(37.7% 0.098 272)
-
Step 950
950
#1C2444
oklch(27.1% 0.06 271.3)
#4253B2 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) | #1661B5 | 0.046 |
| Deuteranopia (no green cones) | #0057B0 | 0.046 |
| Tritanopia (no blue cones) | #00697A | 0.128 |
| Achromatopsia (no color) | #5B5B5B | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4253B2
#4253B2
oklch(48.2% 0.151 271.9)
- #725B00
#725B00
oklch(48.1% 0.098 91.6)
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 #4253B2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.057
- Denim Blue #3B5B92 ΔE 0.060
- Blueberry #464196 ΔE 0.061
- Mid Blue #276AB3 ΔE 0.062
- Blue With A Hint Of Purple #533CC6 ΔE 0.062
- Dusky Blue #475F94 ΔE 0.063
- Twilight #4E518B ΔE 0.064
- Warm Blue #4B57DB ΔE 0.066
Use #4253B2 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.