#2553A6#2553A6

#2553A6 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 45.9% C 0.143 H 261.1°. Best body text is #FFFFFF at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#2553A6
RGB	rgb(37, 83, 166)
HSL	hsl(219, 64%, 40%)
HSV	hsv(219, 78%, 65%)
CMYK	cmyk(77.7%, 50%, 0%, 34.9%)
CIE-LAB	lab(36.62, 14.91, -49.23)
CIE-LCH	lch(36.62, 51.44, 286.85°)
OKLab	oklab(45.85% -0.0222 -0.1415)
OKLCH	oklch(45.85% 0.143 261.1)
XYZ	xyz(10.7367, 9.3318, 37.3044)
Luminance	0.0933 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2553A6 #A67825

analogous

#2593A6 #2553A6 #3825A6

triadic

#2553A6 #A62553 #53A625

tetradic

#2553A6 #A62593 #A67825 #25A638

square

#2553A6 #A62593 #A67825 #25A638

split-complementary

#2553A6 #A63825 #93A625

monochromatic

#0F2142 #1A3A74 #2553A6 #366ED2 #6892DD

Accessibility & contrast

On white

7.33

#2553A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#2553A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2553A6

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2553A6	#FFFFFF	#000000	##FFFFFF
##2553A6	1.00	7.33	2.87	7.33
#FFFFFF	7.33	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#225CA9

Deuteranopia (green-blind)

#0051A4

Tritanopia (blue-blind)

#006774

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #2553a6;
/* rgb */ color: rgb(37, 83, 166);
/* oklch */ color: oklch(45.9% 0.143 261.1);

Tailwind

colors: {
  custom: {
    50: '#7382c1',
    500: '#2553a6',
    950: '#000000',
  },
}

SCSS

$custom: #2553a6;
$custom-light: #7382c1;
$custom-dark: #000000;

JSON

{
  "hex": "#2553a6",
  "rgb": {
    "r": 37,
    "g": 83,
    "b": 166
  },
  "hsl": {
    "h": 218.605,
    "s": 63.547,
    "l": 39.804
  },
  "oklch": {
    "l": 0.45851,
    "c": 0.14329,
    "h": 261.1
  },
  "luminance": 0.09333
}

Semantic roles & 50–950 ramp

primary

#2553A6

secondary

#C3A164

accent

#AC41E7

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #2553A6

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →