#1B4A7E#1B4A7E

#1B4A7E is a dark, moderate cyan. Relative luminance 0.066; OKLCH L 40.6% C 0.101 H 253.5°. Best body text is #FFFFFF at 9.02:1 contrast (WCAG AA passes).

Color values

HEX	#1B4A7E
RGB	rgb(27, 74, 126)
HSL	hsl(212, 65%, 30%)
HSV	hsv(212, 79%, 49%)
CMYK	cmyk(78.6%, 41.3%, 0%, 50.6%)
CIE-LAB	lab(30.96, 3.76, -33.96)
CIE-LCH	lch(30.96, 34.17, 276.31°)
OKLab	oklab(40.55% -0.0287 -0.097)
OKLCH	oklch(40.55% 0.101 253.5)
XYZ	xyz(6.6653, 6.6362, 20.6642)
Luminance	0.0664 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4A7E #7E4F1B

analogous

#1B7C7E #1B4A7E #1D1B7E

triadic

#1B4A7E #7E1B4A #4A7E1B

tetradic

#1B4A7E #7E1B7C #7E4F1B #1B7E1D

square

#1B4A7E #7E1B7C #7E4F1B #1B7E1D

split-complementary

#1B4A7E #7E1D1B #7C7E1B

monochromatic

#050F19 #102C4C #1B4A7E #2668B0 #3E86D6

Accessibility & contrast

On white

9.02

#1B4A7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#1B4A7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4A7E

9.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4A7E	#FFFFFF	#000000	##FFFFFF
##1B4A7E	1.00	9.02	2.33	9.02
#FFFFFF	9.02	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#314E80

Deuteranopia (green-blind)

#21457D

Tritanopia (blue-blind)

#00565E

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1b4a7e;
/* rgb */ color: rgb(27, 74, 126);
/* oklch */ color: oklch(40.6% 0.101 253.5);

Tailwind

colors: {
  custom: {
    50: '#677ca4',
    500: '#1b4a7e',
    950: '#000000',
  },
}

SCSS

$custom: #1b4a7e;
$custom-light: #677ca4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4a7e",
  "rgb": {
    "r": 27,
    "g": 74,
    "b": 126
  },
  "hsl": {
    "h": 211.515,
    "s": 64.706,
    "l": 30
  },
  "oklch": {
    "l": 0.40552,
    "c": 0.10114,
    "h": 253.5
  },
  "luminance": 0.06637
}

Semantic roles & 50–950 ramp

primary

#1B4A7E

secondary

#B27D43

accent

#9840E8

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #1B4A7E

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

Preview Lab → · Contrast checker → · Palette generator →