#3553AF
Closest named color: Denim Blue (#3B5B92). oklch(47.2% 0.151 266.9), rgb(53, 83, 175).
Aa
White text reads best on this color (6.98:1).
About this color
#3553AF is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.151 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.055 away. White text reads best on it, at 6.98:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.00:1 |
| White text | 6.98:1 |
Values
| HEX | #3553AF |
| RGB | rgb(53, 83, 175) |
| HSL | hsl(225, 54%, 45%) |
| OKLCH | oklch(47.2% 0.151 266.9) |
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 #3553AF | 6.98:1 | AA | Lc -88.8 | Fine for body text |
| Black text on #3553AF | 3.00:1 | AA large text | Lc 20.2 | Dividers and decoration only |
| #3553AF text on white | 6.98:1 | AA | Lc 83.8 | Fine for body text |
| #3553AF text on black | 3.00:1 | AA large text | Lc -18.2 | 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
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E3EAF9
oklch(93.6% 0.022 265.8)
-
Step 200
200
#CDD9F5
oklch(88.5% 0.041 267.1)
-
Step 300
300
#ABC0F1
oklch(80.9% 0.073 266.7)
-
Step 400
400
#809EEA
oklch(70.8% 0.117 267)
-
Step 500
500
#6084E3
oklch(63.1% 0.149 266.6)
-
Step 600
600
#486BD1
oklch(55.6% 0.162 266.8)
-
Step 700
700 (this color)
#3553AF
oklch(47.2% 0.151 266.9)
-
Step 800
800
#304993
oklch(42.7% 0.125 267)
-
Step 900
900
#2A3E75
oklch(37.8% 0.097 266.7)
-
Step 950
950
#192544
oklch(27.1% 0.06 266.5)
#3553AF 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) | #175FB2 | 0.035 |
| Deuteranopia (no green cones) | #0054AD | 0.033 |
| Tritanopia (no blue cones) | #006979 | 0.123 |
| Achromatopsia (no color) | #595959 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3553AF
#3553AF
oklch(47.2% 0.151 266.9)
- #735700
#735700
oklch(47.3% 0.097 86.9)
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 #3553AF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.055
- Dusk Blue #26538D ΔE 0.058
- Blueberry #464196 ΔE 0.059
- Blue Blue #2242C7 ΔE 0.061
- Mid Blue #276AB3 ΔE 0.061
- Dusky Blue #475F94 ΔE 0.064
- Twilight #4E518B ΔE 0.065
- Cobalt #1E488F ΔE 0.065
Use #3553AF 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.