#1B4D7E#1B4D7E

#1B4D7E is a dark, moderate cyan. Relative luminance 0.070; OKLCH L 41.3% C 0.098 H 251.1°. Best body text is #FFFFFF at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#1B4D7E
RGB	rgb(27, 77, 126)
HSL	hsl(210, 65%, 30%)
HSV	hsv(210, 79%, 49%)
CMYK	cmyk(78.6%, 38.9%, 0%, 50.6%)
CIE-LAB	lab(31.91, 1.76, -32.45)
CIE-LCH	lch(31.91, 32.50, 273.11°)
OKLab	oklab(41.29% -0.0317 -0.0925)
OKLCH	oklch(41.29% 0.098 251.1)
XYZ	xyz(6.8703, 7.0463, 20.7326)
Luminance	0.0705 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4D7E #7E4C1B

analogous

#1B7E7E #1B4D7E #1B1B7E

triadic

#1B4D7E #7E1B4D #4D7E1B

tetradic

#1B4D7E #7E1B7E #7E4C1B #1B7E1B

square

#1B4D7E #7E1B7E #7E4C1B #1B7E1B

split-complementary

#1B4D7E #7E1B1B #7E7E1B

monochromatic

#050F19 #102E4C #1B4D7E #266CB0 #3E8AD6

Accessibility & contrast

On white

8.72

#1B4D7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#1B4D7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4D7E

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4D7E	#FFFFFF	#000000	##FFFFFF
##1B4D7E	1.00	8.72	2.41	8.72
#FFFFFF	8.72	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#365080

Deuteranopia (green-blind)

#27477D

Tritanopia (blue-blind)

#00595F

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1b4d7e;
/* rgb */ color: rgb(27, 77, 126);
/* oklch */ color: oklch(41.3% 0.098 251.1);

Tailwind

colors: {
  custom: {
    50: '#677ea3',
    500: '#1b4d7e',
    950: '#000000',
  },
}

SCSS

$custom: #1b4d7e;
$custom-light: #677ea3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4d7e",
  "rgb": {
    "r": 27,
    "g": 77,
    "b": 126
  },
  "hsl": {
    "h": 209.697,
    "s": 64.706,
    "l": 30
  },
  "oklch": {
    "l": 0.41293,
    "c": 0.09776,
    "h": 251.1
  },
  "luminance": 0.07047
}

Semantic roles & 50–950 ramp

primary

#1B4D7E

secondary

#B27A43

accent

#9340E8

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #1B4D7E

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

Preview Lab → · Contrast checker → · Palette generator →