#4B5CB6
Closest named color: Iris (#6258C4). oklch(50.8% 0.143 272.3), rgb(75, 92, 182).
Aa
White text reads best on this color (5.99:1).
About this color
#4B5CB6 is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.143 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.040 away. White text reads best on it, at 5.99:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.50:1 |
| White text | 5.99:1 |
Values
| HEX | #4B5CB6 |
| RGB | rgb(75, 92, 182) |
| HSL | hsl(230, 42%, 50%) |
| OKLCH | oklch(50.8% 0.143 272.3) |
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 #4B5CB6 | 5.99:1 | AA | Lc -84.9 | Fine for body text |
| Black text on #4B5CB6 | 3.50:1 | AA large text | Lc 24.4 | Dividers and decoration only |
| #4B5CB6 text on white | 5.99:1 | AA | Lc 79.7 | Fine for body text |
| #4B5CB6 text on black | 3.50:1 | AA large text | Lc -22.1 | 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
#E5E9F8
oklch(93.5% 0.021 274)
-
Step 200
200
#D0D8F3
oklch(88.5% 0.038 272.5)
-
Step 300
300
#B1BFEE
oklch(81% 0.068 271.9)
-
Step 400
400
#899CE6
oklch(70.8% 0.111 272.3)
-
Step 500
500
#6D81DE
oklch(63% 0.141 272.6)
-
Step 600
600
#5669CC
oklch(55.6% 0.154 272.3)
-
Step 700
700 (this color)
#4B5CB6
oklch(50.8% 0.143 272.3)
-
Step 800
800
#3A478F
oklch(42.6% 0.119 272.7)
-
Step 900
900
#313D72
oklch(37.8% 0.092 271.8)
-
Step 950
950
#1D2443
oklch(27.1% 0.058 272.4)
#4B5CB6 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) | #2E68B9 | 0.039 |
| Deuteranopia (no green cones) | #1C5FB4 | 0.043 |
| Tritanopia (no blue cones) | #007080 | 0.125 |
| Achromatopsia (no color) | #636363 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B5CB6
#4B5CB6
oklch(50.8% 0.143 272.3)
- #7B6300
#7B6300
oklch(50.9% 0.104 92.2)
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 #4B5CB6, closest first.
No curated palette has a color within ΔE 0.04 of #4B5CB6.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.040
- French Blue #436BAD ΔE 0.045
- Mid Blue #276AB3 ΔE 0.048
- Dusky Blue #475F94 ΔE 0.057
- Slate Blue #6A5ACD ΔE 0.058
- Dark Periwinkle #665FD1 ΔE 0.058
- Warm Blue #4B57DB ΔE 0.060
- Denim Blue #3B5B92 ΔE 0.062
Use #4B5CB6 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.