#4564CC
Closest named color: Royal Blue (#4169E1). oklch(53.6% 0.165 268), rgb(69, 100, 204).
Aa
White text reads best on this color (5.31:1).
About this color
#4564CC is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.165 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.033 away. White text reads best on it, at 5.31:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.165) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 3.94:1 |
| White text | 5.31:1 |
Values
| HEX | #4564CC |
| RGB | rgb(69, 100, 204) |
| HSL | hsl(226, 57%, 54%) |
| OKLCH | oklch(53.6% 0.165 268) |
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 #4564CC | 5.31:1 | AA | Lc -81.5 | Fine for body text |
| Black text on #4564CC | 3.94:1 | AA large text | Lc 28.0 | Dividers and decoration only |
| #4564CC text on white | 5.31:1 | AA | Lc 76.1 | Fine for body text |
| #4564CC text on black | 3.94:1 | AA large text | Lc -25.6 | 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 600.
-
Step 50
50
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E4EAF9
oklch(93.7% 0.021 268.4)
-
Step 200
200
#CDD9F5
oklch(88.5% 0.041 267.1)
-
Step 300
300
#ACC0F2
oklch(81% 0.074 267.7)
-
Step 400
400
#819DEB
oklch(70.7% 0.119 268.2)
-
Step 500
500
#6283E5
oklch(63.2% 0.152 267.9)
-
Step 600
600 (this color)
#4564CC
oklch(53.6% 0.165 268)
-
Step 700
700
#3C58B6
oklch(49.1% 0.152 267.9)
-
Step 800
800
#314894
oklch(42.7% 0.128 268)
-
Step 900
900
#2B3D76
oklch(37.7% 0.1 268.2)
-
Step 950
950
#192445
oklch(26.9% 0.063 268.1)
#4564CC 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) | #2672D0 | 0.040 |
| Deuteranopia (no green cones) | #0065CA | 0.042 |
| Tritanopia (no blue cones) | #007C8E | 0.136 |
| Achromatopsia (no color) | #6B6B6B | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4564CC
#4564CC
oklch(53.6% 0.165 268)
- #886900
#886900
oklch(53.7% 0.11 88.2)
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 #4564CC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.033
- Warm Blue #4B57DB ΔE 0.040
- Dark Periwinkle #665FD1 ΔE 0.044
- Iris #6258C4 ΔE 0.045
- Mid Blue #276AB3 ΔE 0.052
- Slate Blue #6A5ACD ΔE 0.052
- Neon Blue #4361EE ΔE 0.053
- French Blue #436BAD ΔE 0.055
Use #4564CC 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.