#1F4F85#1F4F85

#1F4F85 is a dark, moderate cyan. Relative luminance 0.076; OKLCH L 42.4% C 0.104 H 253.7°. Best body text is #FFFFFF at 8.35:1 contrast (WCAG AA passes).

Color values

HEX	#1F4F85
RGB	rgb(31, 79, 133)
HSL	hsl(212, 62%, 32%)
HSV	hsv(212, 77%, 52%)
CMYK	cmyk(76.7%, 40.6%, 0%, 47.8%)
CIE-LAB	lab(33.08, 3.78, -34.91)
CIE-LCH	lch(33.08, 35.11, 276.17°)
OKLab	oklab(42.38% -0.0292 -0.0996)
OKLCH	oklch(42.38% 0.104 253.7)
XYZ	xyz(7.5931, 7.5759, 23.2479)
Luminance	0.0758 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4F85 #85551F

analogous

#1F8285 #1F4F85 #221F85

triadic

#1F4F85 #851F4F #4F851F

tetradic

#1F4F85 #851F82 #85551F #1F8522

square

#1F4F85 #851F82 #85551F #1F8522

split-complementary

#1F4F85 #85221F #82851F

monochromatic

#081422 #133253 #1F4F85 #2B6CB7 #4A8BD5

Accessibility & contrast

On white

8.35

#1F4F85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#1F4F85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4F85

8.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4F85	#FFFFFF	#000000	##FFFFFF
##1F4F85	1.00	8.35	2.52	8.35
#FFFFFF	8.35	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#365387

Deuteranopia (green-blind)

#254984

Tritanopia (blue-blind)

#005C63

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1f4f85;
/* rgb */ color: rgb(31, 79, 133);
/* oklch */ color: oklch(42.4% 0.104 253.7);

Tailwind

colors: {
  custom: {
    50: '#6a7fa9',
    500: '#1f4f85',
    950: '#000000',
  },
}

SCSS

$custom: #1f4f85;
$custom-light: #6a7fa9;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4f85",
  "rgb": {
    "r": 31,
    "g": 79,
    "b": 133
  },
  "hsl": {
    "h": 211.765,
    "s": 62.195,
    "l": 32.157
  },
  "oklch": {
    "l": 0.42379,
    "c": 0.1038,
    "h": 253.7
  },
  "luminance": 0.07577
}

Semantic roles & 50–950 ramp

primary

#1F4F85

secondary

#B78349

accent

#9943E5

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1F4F85

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

Preview Lab → · Contrast checker → · Palette generator →