#4553AB
Closest named color: Denim Blue (#3B5B92). oklch(47.8% 0.141 273.1), rgb(69, 83, 171).
Aa
White text reads best on this color (6.82:1).
About this color
#4553AB is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.141 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.051 away. White text reads best on it, at 6.82:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.07:1 |
| White text | 6.82:1 |
Values
| HEX | #4553AB |
| RGB | rgb(69, 83, 171) |
| HSL | hsl(232, 43%, 47%) |
| OKLCH | oklch(47.8% 0.141 273.1) |
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 #4553AB | 6.82:1 | AA | Lc -88.3 | Fine for body text |
| Black text on #4553AB | 3.07:1 | AA large text | Lc 20.8 | Dividers and decoration only |
| #4553AB text on white | 6.82:1 | AA | Lc 83.3 | Fine for body text |
| #4553AB text on black | 3.07:1 | AA large text | Lc -18.7 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F7
oklch(93.5% 0.019 273.2)
-
Step 200
200
#D1D8F3
oklch(88.5% 0.038 274.1)
-
Step 300
300
#B2BEED
oklch(80.8% 0.068 273.6)
-
Step 400
400
#8A9CE5
oklch(70.8% 0.109 272.8)
-
Step 500
500
#6F81DD
oklch(63.1% 0.14 273.4)
-
Step 600
600
#5869CA
oklch(55.6% 0.15 273.1)
-
Step 700
700 (this color)
#4553AB
oklch(47.8% 0.141 273.1)
-
Step 800
800
#3B478E
oklch(42.6% 0.117 273.2)
-
Step 900
900
#323C71
oklch(37.6% 0.091 273.2)
-
Step 950
950
#1D2442
oklch(27% 0.057 272.2)
#4553AB 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) | #235FAE | 0.042 |
| Deuteranopia (no green cones) | #0B56A9 | 0.048 |
| Tritanopia (no blue cones) | #006777 | 0.123 |
| Achromatopsia (no color) | #5B5B5B | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4553AB
#4553AB
oklch(47.8% 0.141 273.1)
- #705B00
#705B00
oklch(47.8% 0.098 93.2)
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 #4553AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.051
- Twilight #4E518B ΔE 0.052
- Dusky Blue #475F94 ΔE 0.054
- Blueberry #464196 ΔE 0.054
- Iris #6258C4 ΔE 0.060
- Dusk Blue #26538D ΔE 0.062
- Mid Blue #276AB3 ΔE 0.063
- French Blue #436BAD ΔE 0.065
Use #4553AB 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.