#263B5F#263B5F

#263B5F is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.3% C 0.069 H 260.6°. Best body text is #FFFFFF at 11.21:1 contrast (WCAG AA passes).

Color values

HEX	#263B5F
RGB	rgb(38, 59, 95)
HSL	hsl(218, 43%, 26%)
HSV	hsv(218, 60%, 37%)
CMYK	cmyk(60%, 37.9%, 0%, 62.7%)
CIE-LAB	lab(24.85, 3.85, -23.93)
CIE-LCH	lch(24.85, 24.24, 279.15°)
OKLab	oklab(35.32% -0.0112 -0.0676)
OKLCH	oklch(35.32% 0.069 260.6)
XYZ	xyz(4.4281, 4.3659, 11.4336)
Luminance	0.0437 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263B5F #5F4A26

analogous

#26575F #263B5F #2D265F

triadic

#263B5F #5F263B #3B5F26

tetradic

#263B5F #5F2657 #5F4A26 #265F2D

square

#263B5F #5F2657 #5F4A26 #265F2D

split-complementary

#263B5F #5F2D26 #575F26

monochromatic

#090E16 #152033 #263B5F #37568B #4971B6

Accessibility & contrast

On white

11.21

#263B5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#263B5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263B5F

11.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263B5F	#FFFFFF	#000000	##FFFFFF
##263B5F	1.00	11.21	1.87	11.21
#FFFFFF	11.21	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3E60

Deuteranopia (green-blind)

#25395E

Tritanopia (blue-blind)

#024348

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #263b5f;
/* rgb */ color: rgb(38, 59, 95);
/* oklch */ color: oklch(35.3% 0.069 260.6);

Tailwind

colors: {
  custom: {
    50: '#65708c',
    500: '#263b5f',
    950: '#000000',
  },
}

SCSS

$custom: #263b5f;
$custom-light: #65708c;
$custom-dark: #000000;

JSON

{
  "hex": "#263b5f",
  "rgb": {
    "r": 38,
    "g": 59,
    "b": 95
  },
  "hsl": {
    "h": 217.895,
    "s": 42.857,
    "l": 26.078
  },
  "oklch": {
    "l": 0.35324,
    "c": 0.06856,
    "h": 260.6
  },
  "luminance": 0.04366
}

Semantic roles & 50–950 ramp

primary

#263B5F

secondary

#92794F

accent

#A455D3

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070C

muted

#7A7A7D

Preview Lab

Preview with #263B5F

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

Preview Lab → · Contrast checker → · Palette generator →