#1B4265#1B4265

#1B4265 is a dark, moderate cyan. Relative luminance 0.051; OKLCH L 36.9% C 0.075 H 248.4°. Best body text is #FFFFFF at 10.43:1 contrast (WCAG AA passes).

Color values

HEX	#1B4265
RGB	rgb(27, 66, 101)
HSL	hsl(208, 58%, 25%)
HSV	hsv(208, 73%, 40%)
CMYK	cmyk(73.3%, 34.7%, 0%, 60.4%)
CIE-LAB	lab(26.93, -0.89, -24.56)
CIE-LCH	lch(26.93, 24.58, 267.93°)
OKLab	oklab(36.92% -0.0276 -0.0696)
OKLCH	oklch(36.92% 0.075 248.4)
XYZ	xyz(4.7483, 5.0685, 13.0375)
Luminance	0.0507 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4265 #653E1B

analogous

#1B6563 #1B4265 #1B1D65

triadic

#1B4265 #651B42 #42651B

tetradic

#1B4265 #631B65 #653E1B #1D651B

square

#1B4265 #631B65 #653E1B #1D651B

split-complementary

#1B4265 #651B1D #65631B

monochromatic

#061018 #0E2235 #1B4265 #286295 #3581C6

Accessibility & contrast

On white

10.43

#1B4265 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#1B4265 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4265

10.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4265	#FFFFFF	#000000	##FFFFFF
##1B4265	1.00	10.43	2.01	10.43
#FFFFFF	10.43	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#324466

Deuteranopia (green-blind)

#283C64

Tritanopia (blue-blind)

#004A4F

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1b4265;
/* rgb */ color: rgb(27, 66, 101);
/* oklch */ color: oklch(36.9% 0.075 248.4);

Tailwind

colors: {
  custom: {
    50: '#617691',
    500: '#1b4265',
    950: '#000000',
  },
}

SCSS

$custom: #1b4265;
$custom-light: #617691;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4265",
  "rgb": {
    "r": 27,
    "g": 66,
    "b": 101
  },
  "hsl": {
    "h": 208.378,
    "s": 57.813,
    "l": 25.098
  },
  "oklch": {
    "l": 0.36918,
    "c": 0.07485,
    "h": 248.4
  },
  "luminance": 0.05069
}

Semantic roles & 50–950 ramp

primary

#1B4265

secondary

#9A6B41

accent

#9047E1

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#05080C

muted

#7A7B7D

Preview Lab

Preview with #1B4265

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

Preview Lab → · Contrast checker → · Palette generator →