#1C2F7B#1C2F7B

#1C2F7B is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.2% C 0.131 H 267.9°. Best body text is #FFFFFF at 12.06:1 contrast (WCAG AA passes).

Color values

HEX	#1C2F7B
RGB	rgb(28, 47, 123)
HSL	hsl(228, 63%, 30%)
HSV	hsv(228, 77%, 48%)
CMYK	cmyk(77.2%, 61.8%, 0%, 51.8%)
CIE-LAB	lab(22.69, 21.46, -45.42)
CIE-LCH	lch(22.69, 50.23, 295.29°)
OKLab	oklab(34.17% -0.0048 -0.1311)
OKLCH	oklch(34.17% 0.131 267.9)
XYZ	xyz(5.0693, 3.7094, 19.1839)
Luminance	0.0371 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2F7B #7B681C

analogous

#1C5F7B #1C2F7B #391C7B

triadic

#1C2F7B #7B1C2F #2F7B1C

tetradic

#1C2F7B #7B1C5F #7B681C #1C7B39

square

#1C2F7B #7B1C5F #7B681C #1C7B39

split-complementary

#1C2F7B #7B391C #5F7B1C

monochromatic

#060A19 #111C49 #1C2F7B #2742AD #3E5CD3

Accessibility & contrast

On white

12.06

#1C2F7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1C2F7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2F7B

12.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2F7B	#FFFFFF	#000000	##FFFFFF
##1C2F7B	1.00	12.06	1.74	12.06
#FFFFFF	12.06	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B7E

Deuteranopia (green-blind)

#00327A

Tritanopia (blue-blind)

#004250

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1c2f7b;
/* rgb */ color: rgb(28, 47, 123);
/* oklch */ color: oklch(34.2% 0.131 267.9);

Tailwind

colors: {
  custom: {
    50: '#6867a2',
    500: '#1c2f7b',
    950: '#000000',
  },
}

SCSS

$custom: #1c2f7b;
$custom-light: #6867a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2f7b",
  "rgb": {
    "r": 28,
    "g": 47,
    "b": 123
  },
  "hsl": {
    "h": 228,
    "s": 62.914,
    "l": 29.608
  },
  "oklch": {
    "l": 0.34168,
    "c": 0.13124,
    "h": 267.9
  },
  "luminance": 0.0371
}

Semantic roles & 50–950 ramp

primary

#1C2F7B

secondary

#AF9944

accent

#C542E6

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1C2F7B

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

Preview Lab → · Contrast checker → · Palette generator →