#1D4F8A#1D4F8A

#1D4F8A is a dark, moderate cyan. Relative luminance 0.077; OKLCH L 42.6% C 0.111 H 254.8°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#1D4F8A
RGB	rgb(29, 79, 138)
HSL	hsl(212, 65%, 33%)
HSV	hsv(212, 79%, 54%)
CMYK	cmyk(79%, 42.8%, 0%, 45.9%)
CIE-LAB	lab(33.32, 5.50, -37.60)
CIE-LCH	lch(33.32, 38.01, 278.32°)
OKLab	oklab(42.65% -0.0293 -0.1075)
OKLCH	oklch(42.65% 0.111 254.8)
XYZ	xyz(7.8884, 7.6872, 25.1079)
Luminance	0.0769 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4F8A #8A581D

analogous

#1D858A #1D4F8A #221D8A

triadic

#1D4F8A #8A1D4F #4F8A1D

tetradic

#1D4F8A #8A1D85 #8A581D #1D8A22

square

#1D4F8A #8A1D85 #8A581D #1D8A22

split-complementary

#1D4F8A #8A221D #858A1D

monochromatic

#081525 #123257 #1D4F8A #286CBD #498BD9

Accessibility & contrast

On white

8.28

#1D4F8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#1D4F8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4F8A

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4F8A	#FFFFFF	#000000	##FFFFFF
##1D4F8A	1.00	8.28	2.54	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#32548C

Deuteranopia (green-blind)

#1F4A89

Tritanopia (blue-blind)

#005D65

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1d4f8a;
/* rgb */ color: rgb(29, 79, 138);
/* oklch */ color: oklch(42.6% 0.111 254.8);

Tailwind

colors: {
  custom: {
    50: '#6a7fac',
    500: '#1d4f8a',
    950: '#000000',
  },
}

SCSS

$custom: #1d4f8a;
$custom-light: #6a7fac;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4f8a",
  "rgb": {
    "r": 29,
    "g": 79,
    "b": 138
  },
  "hsl": {
    "h": 212.477,
    "s": 65.269,
    "l": 32.745
  },
  "oklch": {
    "l": 0.42646,
    "c": 0.11145,
    "h": 254.8
  },
  "luminance": 0.07688
}

Semantic roles & 50–950 ramp

primary

#1D4F8A

secondary

#BB8648

accent

#9B40E8

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1D4F8A

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

Preview Lab → · Contrast checker → · Palette generator →