#4559C3
Closest named color: Warm Blue (#4B57DB). oklch(50.8% 0.166 271.2), rgb(69, 89, 195).
Aa
White text reads best on this color (6.05:1).
About this color
#4559C3 is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.166 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.039 away. White text reads best on it, at 6.05:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.166) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.47:1 |
| White text | 6.05:1 |
Values
| HEX | #4559C3 |
| RGB | rgb(69, 89, 195) |
| HSL | hsl(230, 51%, 52%) |
| OKLCH | oklch(50.8% 0.166 271.2) |
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 #4559C3 | 6.05:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #4559C3 | 3.47:1 | AA large text | Lc 24.2 | Dividers and decoration only |
| #4559C3 text on white | 6.05:1 | AA | Lc 79.9 | Fine for body text |
| #4559C3 text on black | 3.47:1 | AA large text | Lc -22.0 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CED8F8
oklch(88.5% 0.045 271.7)
-
Step 300
300
#ADBEF5
oklch(80.8% 0.08 271.2)
-
Step 400
400
#839BF1
oklch(70.7% 0.129 271)
-
Step 500
500
#667FEC
oklch(63% 0.165 271.2)
-
Step 600
600
#4F66DA
oklch(55.6% 0.179 271)
-
Step 700
700 (this color)
#4559C3
oklch(50.8% 0.166 271.2)
-
Step 800
800
#354599
oklch(42.6% 0.138 271.2)
-
Step 900
900
#2E3B7A
oklch(37.7% 0.108 271.6)
-
Step 950
950
#1B2347
oklch(27% 0.068 271.8)
#4559C3 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) | #0868C7 | 0.050 |
| Deuteranopia (no green cones) | #005DC1 | 0.046 |
| Tritanopia (no blue cones) | #007285 | 0.139 |
| Achromatopsia (no color) | #636363 | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4559C3
#4559C3
oklch(50.8% 0.166 271.2)
- #7C6200
#7C6200
oklch(50.8% 0.104 90.5)
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 #4559C3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.039
- Iris #6258C4 ΔE 0.040
- Dark Periwinkle #665FD1 ΔE 0.054
- Slate Blue #6A5ACD ΔE 0.055
- Mid Blue #276AB3 ΔE 0.058
- Royal Blue #4169E1 ΔE 0.058
- Light Indigo #6D5ACF ΔE 0.061
- French Blue #436BAD ΔE 0.063
Use #4559C3 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.