#253F66#253F66

#253F66 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 36.7% C 0.075 H 258.3°. Best body text is #FFFFFF at 10.60:1 contrast (WCAG AA passes).

Color values

HEX	#253F66
RGB	rgb(37, 63, 102)
HSL	hsl(216, 47%, 27%)
HSV	hsv(216, 64%, 40%)
CMYK	cmyk(63.7%, 38.2%, 0%, 60%)
CIE-LAB	lab(26.47, 3.51, -25.90)
CIE-LCH	lch(26.47, 26.14, 277.73°)
OKLab	oklab(36.7% -0.0152 -0.0734)
OKLCH	oklch(36.7% 0.075 258.3)
XYZ	xyz(4.9379, 4.9072, 13.2548)
Luminance	0.0491 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253F66 #664C25

analogous

#256066 #253F66 #2B2566

triadic

#253F66 #66253F #3F6625

tetradic

#253F66 #662560 #664C25 #25662B

square

#253F66 #662560 #664C25 #25662B

split-complementary

#253F66 #662B25 #606625

monochromatic

#080E16 #152339 #253F66 #355B93 #4977BD

Accessibility & contrast

On white

10.60

#253F66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#253F66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253F66

10.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253F66	#FFFFFF	#000000	##FFFFFF
##253F66	1.00	10.60	1.98	10.60
#FFFFFF	10.60	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F4268

Deuteranopia (green-blind)

#263C65

Tritanopia (blue-blind)

#00484D

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #253f66;
/* rgb */ color: rgb(37, 63, 102);
/* oklch */ color: oklch(36.7% 0.075 258.3);

Tailwind

colors: {
  custom: {
    50: '#667392',
    500: '#253f66',
    950: '#000000',
  },
}

SCSS

$custom: #253f66;
$custom-light: #667392;
$custom-dark: #000000;

JSON

{
  "hex": "#253f66",
  "rgb": {
    "r": 37,
    "g": 63,
    "b": 102
  },
  "hsl": {
    "h": 216,
    "s": 46.763,
    "l": 27.255
  },
  "oklch": {
    "l": 0.36702,
    "c": 0.07493,
    "h": 258.3
  },
  "luminance": 0.04908
}

Semantic roles & 50–950 ramp

primary

#253F66

secondary

#997B4E

accent

#A151D6

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06080D

muted

#7A7B7D

Preview Lab

Preview with #253F66

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

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