#4253C7
Closest named color: Warm Blue (#4B57DB). oklch(49.8% 0.18 271.8), rgb(66, 83, 199).
Aa
White text reads best on this color (6.37:1).
About this color
#4253C7 is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.180 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.035 away. White text reads best on it, at 6.37:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.180) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.29:1 |
| White text | 6.37:1 |
Values
| HEX | #4253C7 |
| RGB | rgb(66, 83, 199) |
| HSL | hsl(232, 54%, 52%) |
| OKLCH | oklch(49.8% 0.18 271.8) |
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 #4253C7 | 6.37:1 | AA | Lc -86.4 | Fine for body text |
| Black text on #4253C7 | 3.29:1 | AA large text | Lc 22.8 | Dividers and decoration only |
| #4253C7 text on white | 6.37:1 | AA | Lc 81.2 | Fine for body text |
| #4253C7 text on black | 3.29:1 | AA large text | Lc -20.6 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E4E9FB
oklch(93.6% 0.025 273.5)
-
Step 200
200
#CDD8FA
oklch(88.5% 0.048 271.2)
-
Step 300
300
#ACBEFA
oklch(80.9% 0.087 271.4)
-
Step 400
400
#829AF7
oklch(70.8% 0.139 271.5)
-
Step 500
500
#657DF4
oklch(63.1% 0.179 271.8)
-
Step 600
600
#4F63E2
oklch(55.6% 0.193 271.8)
-
Step 700
700 (this color)
#4253C7
oklch(49.8% 0.18 271.8)
-
Step 800
800
#35439F
oklch(42.7% 0.149 272)
-
Step 900
900
#2D3A7E
oklch(37.7% 0.116 271.6)
-
Step 950
950
#1A224A
oklch(26.9% 0.075 272)
#4253C7 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) | #0065CB | 0.054 |
| Deuteranopia (no green cones) | #0059C5 | 0.044 |
| Tritanopia (no blue cones) | #007085 | 0.148 |
| Achromatopsia (no color) | #5F5F5F | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4253C7
#4253C7
oklch(49.8% 0.18 271.8)
- #786000
#786000
oklch(49.9% 0.102 91.7)
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 #4253C7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.035
- Iris #6258C4 ΔE 0.049
- Blue With A Hint Of Purple #533CC6 ΔE 0.051
- Blue Blue #2242C7 ΔE 0.057
- Bluey Purple #6241C7 ΔE 0.057
- Blurple #5539CC ΔE 0.057
- Majorelle Blue #3F37C9 ΔE 0.060
- Slate Blue #6A5ACD ΔE 0.063
Use #4253C7 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.