#1D4B7B#1D4B7B

#1D4B7B is a dark, moderate cyan. Relative luminance 0.067; OKLCH L 40.7% C 0.095 H 252.1°. Best body text is #FFFFFF at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#1D4B7B
RGB	rgb(29, 75, 123)
HSL	hsl(211, 62%, 30%)
HSV	hsv(211, 76%, 48%)
CMYK	cmyk(76.4%, 39%, 0%, 51.8%)
CIE-LAB	lab(31.17, 2.17, -31.77)
CIE-LCH	lch(31.17, 31.84, 273.91°)
OKLab	oklab(40.67% -0.0292 -0.0905)
OKLCH	oklch(40.67% 0.095 252.1)
XYZ	xyz(6.5966, 6.7227, 19.6850)
Luminance	0.0672 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4B7B #7B4D1D

analogous

#1D7A7B #1D4B7B #1E1D7B

triadic

#1D4B7B #7B1D4B #4B7B1D

tetradic

#1D4B7B #7B1D7A #7B4D1D #1D7B1E

square

#1D4B7B #7B1D7A #7B4D1D #1D7B1E

split-complementary

#1D4B7B #7B1E1D #7A7B1D

monochromatic

#060F19 #112D49 #1D4B7B #2969AD #4088D2

Accessibility & contrast

On white

8.96

#1D4B7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#1D4B7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4B7B

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4B7B	#FFFFFF	#000000	##FFFFFF
##1D4B7B	1.00	8.96	2.34	8.96
#FFFFFF	8.96	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#354E7D

Deuteranopia (green-blind)

#27457A

Tritanopia (blue-blind)

#00565D

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1d4b7b;
/* rgb */ color: rgb(29, 75, 123);
/* oklch */ color: oklch(40.7% 0.095 252.1);

Tailwind

colors: {
  custom: {
    50: '#677ca1',
    500: '#1d4b7b',
    950: '#000000',
  },
}

SCSS

$custom: #1d4b7b;
$custom-light: #677ca1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4b7b",
  "rgb": {
    "r": 29,
    "g": 75,
    "b": 123
  },
  "hsl": {
    "h": 210.638,
    "s": 61.842,
    "l": 29.804
  },
  "oklch": {
    "l": 0.40671,
    "c": 0.09509,
    "h": 252.1
  },
  "luminance": 0.06723
}

Semantic roles & 50–950 ramp

primary

#1D4B7B

secondary

#AF7B45

accent

#9643E5

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#07090F

muted

#7A7B7E

Preview Lab

Preview with #1D4B7B

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

Preview Lab → · Contrast checker → · Palette generator →