#263B59#263B59

#263B59 is a dark, muted blue. Relative luminance 0.043; OKLCH L 35.0% C 0.059 H 257.3°. Best body text is #FFFFFF at 11.34:1 contrast (WCAG AA passes).

Color values

HEX	#263B59
RGB	rgb(38, 59, 89)
HSL	hsl(215, 40%, 25%)
HSV	hsv(215, 57%, 35%)
CMYK	cmyk(57.3%, 33.7%, 0%, 65.1%)
CIE-LAB	lab(24.52, 1.65, -20.54)
CIE-LCH	lch(24.52, 20.60, 274.60°)
OKLab	oklab(34.96% -0.013 -0.0578)
OKLCH	oklch(34.96% 0.059 257.3)
XYZ	xyz(4.1658, 4.2609, 10.0522)
Luminance	0.0426 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263B59 #594426

analogous

#265459 #263B59 #2B2659

triadic

#263B59 #59263B #3B5926

tetradic

#263B59 #592654 #594426 #26592B

square

#263B59 #592654 #594426 #26592B

split-complementary

#263B59 #592B26 #545926

monochromatic

#090E15 #141F2E #263B59 #385784 #4B74AF

Accessibility & contrast

On white

11.34

#263B59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#263B59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263B59

11.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263B59	#FFFFFF	#000000	##FFFFFF
##263B59	1.00	11.34	1.85	11.34
#FFFFFF	11.34	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3D5A

Deuteranopia (green-blind)

#293858

Tritanopia (blue-blind)

#0A4246

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #263b59;
/* rgb */ color: rgb(38, 59, 89);
/* oklch */ color: oklch(35.0% 0.059 257.3);

Tailwind

colors: {
  custom: {
    50: '#647088',
    500: '#263b59',
    950: '#000000',
  },
}

SCSS

$custom: #263b59;
$custom-light: #647088;
$custom-dark: #000000;

JSON

{
  "hex": "#263b59",
  "rgb": {
    "r": 38,
    "g": 59,
    "b": 89
  },
  "hsl": {
    "h": 215.294,
    "s": 40.157,
    "l": 24.902
  },
  "oklch": {
    "l": 0.34959,
    "c": 0.05922,
    "h": 257.3
  },
  "luminance": 0.04261
}

Semantic roles & 50–950 ramp

primary

#263B59

secondary

#8C734F

accent

#9F58D0

background

#F6F6F8

surface

#EBECEF

border

#C6C7CA

text

#06070B

muted

#7A7A7C

Preview Lab

Preview with #263B59

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

Preview Lab → · Contrast checker → · Palette generator →