#1D4E7F#1D4E7F

#1D4E7F is a dark, moderate cyan. Relative luminance 0.072; OKLCH L 41.7% C 0.097 H 251.4°. Best body text is #FFFFFF at 8.58:1 contrast (WCAG AA passes).

Color values

HEX	#1D4E7F
RGB	rgb(29, 78, 127)
HSL	hsl(210, 63%, 31%)
HSV	hsv(210, 77%, 50%)
CMYK	cmyk(77.2%, 38.6%, 0%, 50.2%)
CIE-LAB	lab(32.35, 1.78, -32.37)
CIE-LCH	lch(32.35, 32.42, 273.14°)
OKLab	oklab(41.67% -0.0311 -0.0922)
OKLCH	oklch(41.67% 0.097 251.4)
XYZ	xyz(7.0604, 7.2415, 21.1002)
Luminance	0.0724 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4E7F #7F4E1D

analogous

#1D7F7F #1D4E7F #1D1D7F

triadic

#1D4E7F #7F1D4E #4E7F1D

tetradic

#1D4E7F #7F1D7F #7F4E1D #1D7F1D

square

#1D4E7F #7F1D7F #7F4E1D #1D7F1D

split-complementary

#1D4E7F #7F1D1D #7F7F1D

monochromatic

#06111B #122F4D #1D4E7F #286DB1 #428BD4

Accessibility & contrast

On white

8.58

#1D4E7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#1D4E7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4E7F

8.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4E7F	#FFFFFF	#000000	##FFFFFF
##1D4E7F	1.00	8.58	2.45	8.58
#FFFFFF	8.58	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#375181

Deuteranopia (green-blind)

#29487E

Tritanopia (blue-blind)

#005A60

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1d4e7f;
/* rgb */ color: rgb(29, 78, 127);
/* oklch */ color: oklch(41.7% 0.097 251.4);

Tailwind

colors: {
  custom: {
    50: '#687fa4',
    500: '#1d4e7f',
    950: '#000000',
  },
}

SCSS

$custom: #1d4e7f;
$custom-light: #687fa4;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4e7f",
  "rgb": {
    "r": 29,
    "g": 78,
    "b": 127
  },
  "hsl": {
    "h": 210,
    "s": 62.821,
    "l": 30.588
  },
  "oklch": {
    "l": 0.41673,
    "c": 0.09732,
    "h": 251.4
  },
  "luminance": 0.07242
}

Semantic roles & 50–950 ramp

primary

#1D4E7F

secondary

#B27C45

accent

#9442E6

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1D4E7F

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

Preview Lab → · Contrast checker → · Palette generator →