#1C2F71#1C2F71

#1C2F71 is a dark, moderate blue. Relative luminance 0.035; OKLCH L 33.3% C 0.117 H 267.5°. Best body text is #FFFFFF at 12.39:1 contrast (WCAG AA passes).

Color values

HEX	#1C2F71
RGB	rgb(28, 47, 113)
HSL	hsl(227, 60%, 28%)
HSV	hsv(227, 75%, 44%)
CMYK	cmyk(75.2%, 58.4%, 0%, 55.7%)
CIE-LAB	lab(21.84, 17.43, -40.41)
CIE-LCH	lch(21.84, 44.01, 293.34°)
OKLab	oklab(33.27% -0.0051 -0.1164)
OKLCH	oklch(33.27% 0.117 267.5)
XYZ	xyz(4.4750, 3.4717, 16.0538)
Luminance	0.0347 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2F71 #715E1C

analogous

#1C5A71 #1C2F71 #331C71

triadic

#1C2F71 #711C2F #2F711C

tetradic

#1C2F71 #711C5A #715E1C #1C7133

square

#1C2F71 #711C5A #715E1C #1C7133

split-complementary

#1C2F71 #71331C #5A711C

monochromatic

#060A19 #101B40 #1C2F71 #2843A2 #395BCE

Accessibility & contrast

On white

12.39

#1C2F71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1C2F71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2F71

12.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2F71	#FFFFFF	#000000	##FFFFFF
##1C2F71	1.00	12.39	1.69	12.39
#FFFFFF	12.39	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003873

Deuteranopia (green-blind)

#003170

Tritanopia (blue-blind)

#003F4B

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1c2f71;
/* rgb */ color: rgb(28, 47, 113);
/* oklch */ color: oklch(33.3% 0.117 267.5);

Tailwind

colors: {
  custom: {
    50: '#65679a',
    500: '#1c2f71',
    950: '#000000',
  },
}

SCSS

$custom: #1c2f71;
$custom-light: #65679a;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2f71",
  "rgb": {
    "r": 28,
    "g": 47,
    "b": 113
  },
  "hsl": {
    "h": 226.588,
    "s": 60.284,
    "l": 27.647
  },
  "oklch": {
    "l": 0.33272,
    "c": 0.11654,
    "h": 267.5
  },
  "luminance": 0.03472
}

Semantic roles & 50–950 ramp

primary

#1C2F71

secondary

#A69043

accent

#C044E3

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #1C2F71

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

Preview Lab → · Contrast checker → · Palette generator →