#4B5FC9
Closest named color: Iris (#6258C4). oklch(52.8% 0.165 271.6), rgb(75, 95, 201).
Aa
White text reads best on this color (5.55:1).
About this color
#4B5FC9 is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.165 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.034 away. White text reads best on it, at 5.55:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.165) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.77:1 |
| White text | 5.55:1 |
Values
| HEX | #4B5FC9 |
| RGB | rgb(75, 95, 201) |
| HSL | hsl(230, 54%, 54%) |
| OKLCH | oklch(52.8% 0.165 271.6) |
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 #4B5FC9 | 5.55:1 | AA | Lc -82.7 | Fine for body text |
| Black text on #4B5FC9 | 3.77:1 | AA large text | Lc 26.6 | Dividers and decoration only |
| #4B5FC9 text on white | 5.55:1 | AA | Lc 77.4 | Fine for body text |
| #4B5FC9 text on black | 3.77:1 | AA large text | Lc -24.3 | 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 600.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4E9F9
oklch(93.5% 0.022 272.1)
-
Step 200
200
#CFD8F5
oklch(88.4% 0.041 271.9)
-
Step 300
300
#AFBEF2
oklch(80.8% 0.076 272.1)
-
Step 400
400
#869CEB
oklch(70.8% 0.119 271.3)
-
Step 500
500
#6981E5
oklch(63.2% 0.152 271.3)
-
Step 600
600 (this color)
#4B5FC9
oklch(52.8% 0.165 271.6)
-
Step 700
700
#4356B6
oklch(49.1% 0.153 271.3)
-
Step 800
800
#374794
oklch(42.8% 0.127 271.2)
-
Step 900
900
#2F3C76
oklch(37.7% 0.1 271.4)
-
Step 950
950
#1C2445
oklch(27.1% 0.062 271.5)
#4B5FC9 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) | #1C6ECD | 0.049 |
| Deuteranopia (no green cones) | #0063C7 | 0.050 |
| Tritanopia (no blue cones) | #00788B | 0.140 |
| Achromatopsia (no color) | #686868 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B5FC9
#4B5FC9
oklch(52.8% 0.165 271.6)
- #826800
#826800
oklch(52.8% 0.108 91.5)
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 #4B5FC9, closest first.
No curated palette has a color within ΔE 0.04 of #4B5FC9.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.034
- Warm Blue #4B57DB ΔE 0.035
- Dark Periwinkle #665FD1 ΔE 0.039
- Royal Blue #4169E1 ΔE 0.043
- Slate Blue #6A5ACD ΔE 0.044
- Light Indigo #6D5ACF ΔE 0.049
- Neon Blue #4361EE ΔE 0.057
- Mid Blue #276AB3 ΔE 0.057
Use #4B5FC9 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.