#4553A0
Closest named color: Twilight (#4E518B). oklch(47.1% 0.125 273), rgb(69, 83, 160).
Aa
White text reads best on this color (7.00:1).
About this color
#4553A0 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.125 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.035 away. White text reads best on it, at 7.00:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.99:1 |
| White text | 7.00:1 |
Values
| HEX | #4553A0 |
| RGB | rgb(69, 83, 160) |
| HSL | hsl(231, 40%, 45%) |
| OKLCH | oklch(47.1% 0.125 273) |
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 #4553A0 | 7.00:1 | AAA | Lc -89.0 | Fine for body text |
| Black text on #4553A0 | 2.99:1 | Fails | Lc 20.0 | Dividers and decoration only |
| #4553A0 text on white | 7.00:1 | AAA | Lc 84.1 | Fine for body text |
| #4553A0 text on black | 2.99:1 | Fails | Lc -17.9 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E6E9F6
oklch(93.6% 0.018 275.6)
-
Step 200
200
#D1D8F0
oklch(88.4% 0.034 272.8)
-
Step 300
300
#B3BFE8
oklch(80.9% 0.06 272.2)
-
Step 400
400
#8C9DDD
oklch(70.7% 0.096 272.3)
-
Step 500
500
#7183D4
oklch(63.1% 0.124 272.9)
-
Step 600
600
#5A6BC1
oklch(55.6% 0.134 272.9)
-
Step 700
700 (this color)
#4553A0
oklch(47.1% 0.125 273)
-
Step 800
800
#3D4987
oklch(42.7% 0.103 273)
-
Step 900
900
#343E6C
oklch(37.8% 0.08 272.8)
-
Step 950
950
#1E243F
oklch(26.9% 0.051 273)
#4553A0 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) | #2F5DA3 | 0.033 |
| Deuteranopia (no green cones) | #22559E | 0.037 |
| Tritanopia (no blue cones) | #106472 | 0.110 |
| Achromatopsia (no color) | #595959 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4553A0
#4553A0
oklch(47.1% 0.125 273)
- #6E5900
#6E5900
oklch(47.1% 0.097 92.9)
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 #4553A0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.035
- Denim Blue #3B5B92 ΔE 0.036
- Dusky Blue #475F94 ΔE 0.042
- Blueberry #464196 ΔE 0.048
- Dusk Blue #26538D ΔE 0.048
- Dusk #4E5481 ΔE 0.053
- Light Navy Blue #2E5A88 ΔE 0.054
- Denim #3B638C ΔE 0.062
Use #4553A0 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.