#4B4BCF
Closest named color: Warm Blue (#4B57DB). oklch(49.6% 0.198 276.4), rgb(75, 75, 207).
Aa
White text reads best on this color (6.54:1).
About this color
#4B4BCF is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.198 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.032 away. White text reads best on it, at 6.54:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.198) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.20:1 |
| White text | 6.54:1 |
Values
| HEX | #4B4BCF |
| RGB | rgb(75, 75, 207) |
| HSL | hsl(240, 58%, 55%) |
| OKLCH | oklch(49.6% 0.198 276.4) |
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 #4B4BCF | 6.54:1 | AA | Lc -87.0 | Fine for body text |
| Black text on #4B4BCF | 3.20:1 | AA large text | Lc 22.2 | Dividers and decoration only |
| #4B4BCF text on white | 6.54:1 | AA | Lc 81.9 | Fine for body text |
| #4B4BCF text on black | 3.20:1 | AA large text | Lc -20.0 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FD
oklch(93.6% 0.028 274.7)
-
Step 200
200
#CFD7FD
oklch(88.5% 0.053 275.9)
-
Step 300
300
#B0BCFF
oklch(81% 0.096 276.2)
-
Step 400
400
#8895FF
oklch(70.6% 0.155 276.4)
-
Step 500
500
#6E77FD
oklch(63.1% 0.196 276.3)
-
Step 600
600
#595BEC
oklch(55.6% 0.213 276.4)
-
Step 700
700 (this color)
#4B4BCF
oklch(49.6% 0.198 276.4)
-
Step 800
800
#3C3DA6
oklch(42.6% 0.165 276.4)
-
Step 900
900
#323683
oklch(37.7% 0.127 276.2)
-
Step 950
950
#1D204D
oklch(26.9% 0.082 276.5)
#4B4BCF 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) | #0063D3 | 0.068 |
| Deuteranopia (no green cones) | #0058CC | 0.058 |
| Tritanopia (no blue cones) | #006D86 | 0.165 |
| Achromatopsia (no color) | #5D5D5D | 0.199 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B4BCF
#4B4BCF
oklch(49.6% 0.198 276.4)
- #736100
#736100
oklch(49.5% 0.102 96.4)
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 #4B4BCF, closest first.
No curated palette has a color within ΔE 0.04 of #4B4BCF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.032
- Blue With A Hint Of Purple #533CC6 ΔE 0.034
- Blurple #5539CC ΔE 0.037
- Bluey Purple #6241C7 ΔE 0.041
- Majorelle Blue #3F37C9 ΔE 0.048
- Iris #6258C4 ΔE 0.052
- Blue Blue #2242C7 ΔE 0.057
- Purpley Blue #5F34E7 ΔE 0.057
Use #4B4BCF 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.