#253C63#253C63

#253C63 is a dark, moderate blue. Relative luminance 0.045; OKLCH L 35.8% C 0.074 H 260.4°. Best body text is #FFFFFF at 11.02:1 contrast (WCAG AA passes).

Color values

HEX	#253C63
RGB	rgb(37, 60, 99)
HSL	hsl(218, 46%, 27%)
HSV	hsv(218, 63%, 39%)
CMYK	cmyk(62.6%, 39.4%, 0%, 61.2%)
CIE-LAB	lab(25.34, 4.43, -25.75)
CIE-LCH	lch(25.34, 26.13, 279.76°)
OKLab	oklab(35.77% -0.0123 -0.073)
OKLCH	oklch(35.77% 0.074 260.4)
XYZ	xyz(4.6302, 4.5255, 12.4315)
Luminance	0.0453 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253C63 #634C25

analogous

#255B63 #253C63 #2D2563

triadic

#253C63 #63253C #3C6325

tetradic

#253C63 #63255B #634C25 #25632D

square

#253C63 #63255B #634C25 #25632D

split-complementary

#253C63 #632D25 #5B6325

monochromatic

#080D16 #142136 #253C63 #365790 #4872BB

Accessibility & contrast

On white

11.02

#253C63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#253C63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253C63

11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253C63	#FFFFFF	#000000	##FFFFFF
##253C63	1.00	11.02	1.91	11.02
#FFFFFF	11.02	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3F65

Deuteranopia (green-blind)

#243962

Tritanopia (blue-blind)

#00454A

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #253c63;
/* rgb */ color: rgb(37, 60, 99);
/* oklch */ color: oklch(35.8% 0.074 260.4);

Tailwind

colors: {
  custom: {
    50: '#65718f',
    500: '#253c63',
    950: '#000000',
  },
}

SCSS

$custom: #253c63;
$custom-light: #65718f;
$custom-dark: #000000;

JSON

{
  "hex": "#253c63",
  "rgb": {
    "r": 37,
    "g": 60,
    "b": 99
  },
  "hsl": {
    "h": 217.742,
    "s": 45.588,
    "l": 26.667
  },
  "oklch": {
    "l": 0.35766,
    "c": 0.07402,
    "h": 260.4
  },
  "luminance": 0.04526
}

Semantic roles & 50–950 ramp

primary

#253C63

secondary

#967B4E

accent

#A553D5

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070C

muted

#7A7A7D

Preview Lab

Preview with #253C63

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

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