#1D4577#1D4577

#1D4577 is a dark, moderate cyan. Relative luminance 0.058; OKLCH L 38.9% C 0.096 H 255.4°. Best body text is #FFFFFF at 9.68:1 contrast (WCAG AA passes).

Color values

HEX	#1D4577
RGB	rgb(29, 69, 119)
HSL	hsl(213, 61%, 29%)
HSV	hsv(213, 76%, 47%)
CMYK	cmyk(75.6%, 42%, 0%, 53.3%)
CIE-LAB	lab(29.03, 4.60, -32.67)
CIE-LCH	lch(29.03, 32.99, 278.01°)
OKLab	oklab(38.92% -0.0242 -0.0932)
OKLCH	oklch(38.92% 0.096 255.4)
XYZ	xyz(5.9634, 5.8487, 18.2638)
Luminance	0.0585 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4577 #774F1D

analogous

#1D7277 #1D4577 #221D77

triadic

#1D4577 #771D45 #45771D

tetradic

#1D4577 #771D72 #774F1D #1D7722

square

#1D4577 #771D72 #774F1D #1D7722

split-complementary

#1D4577 #77221D #72771D

monochromatic

#060E19 #112846 #1D4577 #2962A8 #3E7FD0

Accessibility & contrast

On white

9.68

#1D4577 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#1D4577 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4577

9.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4577	#FFFFFF	#000000	##FFFFFF
##1D4577	1.00	9.68	2.17	9.68
#FFFFFF	9.68	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D4979

Deuteranopia (green-blind)

#1F4176

Tritanopia (blue-blind)

#005158

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1d4577;
/* rgb */ color: rgb(29, 69, 119);
/* oklch */ color: oklch(38.9% 0.096 255.4);

Tailwind

colors: {
  custom: {
    50: '#66789e',
    500: '#1d4577',
    950: '#000000',
  },
}

SCSS

$custom: #1d4577;
$custom-light: #66789e;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4577",
  "rgb": {
    "r": 29,
    "g": 69,
    "b": 119
  },
  "hsl": {
    "h": 213.333,
    "s": 60.811,
    "l": 29.02
  },
  "oklch": {
    "l": 0.38924,
    "c": 0.09632,
    "h": 255.4
  },
  "luminance": 0.05849
}

Semantic roles & 50–950 ramp

primary

#1D4577

secondary

#AB7E45

accent

#9D44E4

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #1D4577

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

Preview Lab → · Contrast checker → · Palette generator →