#4B559C
Closest named color: Twilight (#4E518B). oklch(47.6% 0.114 275.2), rgb(75, 85, 156).
Aa
White text reads best on this color (6.82:1).
About this color
#4B559C is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.114 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.028 away. White text reads best on it, at 6.82:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.07:1 |
| White text | 6.82:1 |
Values
| HEX | #4B559C |
| RGB | rgb(75, 85, 156) |
| HSL | hsl(233, 35%, 45%) |
| OKLCH | oklch(47.6% 0.114 275.2) |
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 #4B559C | 6.82:1 | AA | Lc -88.4 | Fine for body text |
| Black text on #4B559C | 3.07:1 | AA large text | Lc 20.6 | Dividers and decoration only |
| #4B559C text on white | 6.82:1 | AA | Lc 83.4 | Fine for body text |
| #4B559C text on black | 3.07:1 | AA large text | Lc -18.6 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F5
oklch(93.5% 0.016 274.8)
-
Step 200
200
#D3D8EE
oklch(88.5% 0.031 275.6)
-
Step 300
300
#B6BEE5
oklch(80.8% 0.056 276)
-
Step 400
400
#909CD8
oklch(70.6% 0.089 275.2)
-
Step 500
500
#7683CD
oklch(63.1% 0.112 275.1)
-
Step 600
600
#5F6BBA
oklch(55.5% 0.123 275.1)
-
Step 700
700 (this color)
#4B559C
oklch(47.6% 0.114 275.2)
-
Step 800
800
#414982
oklch(42.7% 0.095 275.6)
-
Step 900
900
#363E68
oklch(37.7% 0.073 274.2)
-
Step 950
950
#20243D
oklch(26.9% 0.047 275.9)
#4B559C 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) | #375E9F | 0.031 |
| Deuteranopia (no green cones) | #2F589A | 0.034 |
| Tritanopia (no blue cones) | #296471 | 0.100 |
| Achromatopsia (no color) | #5B5B5B | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B559C
#4B559C
oklch(47.6% 0.114 275.2)
- #6E5B00
#6E5B00
oklch(47.6% 0.098 94.8)
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 #4B559C, closest first.
No curated palette has a color within ΔE 0.04 of #4B559C.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.028
- Denim Blue #3B5B92 ΔE 0.032
- Dusky Blue #475F94 ΔE 0.033
- Dusk #4E5481 ΔE 0.044
- Dusk Blue #26538D ΔE 0.052
- Light Navy Blue #2E5A88 ΔE 0.052
- Blueberry #464196 ΔE 0.054
- Denim #3B638C ΔE 0.055
Use #4B559C 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.