#04263B#04263B

#04263B is a dark, muted cyan. Relative luminance 0.017; OKLCH L 25.7% C 0.055 H 240.9°. Best body text is #FFFFFF at 15.61:1 contrast (WCAG AA passes).

Color values

HEX	#04263B
RGB	rgb(4, 38, 59)
HSL	hsl(203, 87%, 12%)
HSV	hsv(203, 93%, 23%)
CMYK	cmyk(93.2%, 35.6%, 0%, 76.9%)
CIE-LAB	lab(13.99, -2.95, -16.88)
CIE-LCH	lch(13.99, 17.13, 260.10°)
OKLab	oklab(25.69% -0.0267 -0.0479)
OKLCH	oklch(25.69% 0.055 240.9)
XYZ	xyz(1.5323, 1.7276, 4.3895)
Luminance	0.0173 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04263B #3B1904

analogous

#043B35 #04263B #040B3B

triadic

#04263B #3B0426 #263B04

tetradic

#04263B #35043B #3B1904 #0B3B04

square

#04263B #35043B #3B1904 #0B3B04

split-complementary

#04263B #3B040B #3B3504

monochromatic

#02121D #02121D #04263B #084B74 #0C70AE

Accessibility & contrast

On white

15.61

#04263B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#04263B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04263B

15.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04263B	#FFFFFF	#000000	##FFFFFF
##04263B	1.00	15.61	1.35	15.61
#FFFFFF	15.61	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C263C

Deuteranopia (green-blind)

#14213B

Tritanopia (blue-blind)

#002B2D

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #04263b;
/* rgb */ color: rgb(4, 38, 59);
/* oklch */ color: oklch(25.7% 0.055 240.9);

Tailwind

colors: {
  custom: {
    50: '#4f6071',
    500: '#04263b',
    950: '#000000',
  },
}

SCSS

$custom: #04263b;
$custom-light: #4f6071;
$custom-dark: #000000;

JSON

{
  "hex": "#04263b",
  "rgb": {
    "r": 4,
    "g": 38,
    "b": 59
  },
  "hsl": {
    "h": 202.909,
    "s": 87.302,
    "l": 12.353
  },
  "oklch": {
    "l": 0.25692,
    "c": 0.05481,
    "h": 240.9
  },
  "luminance": 0.01728
}

Semantic roles & 50–950 ramp

primary

#04263B

secondary

#7D421E

accent

#7B2AFD

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020407

muted

#78797A

Preview Lab

Preview with #04263B

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

Preview Lab → · Contrast checker → · Palette generator →