#1C2F80#1C2F80

#1C2F80 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.6% C 0.138 H 268.0°. Best body text is #FFFFFF at 11.88:1 contrast (WCAG AA passes).

Color values

HEX	#1C2F80
RGB	rgb(28, 47, 128)
HSL	hsl(229, 64%, 31%)
HSV	hsv(229, 78%, 50%)
CMYK	cmyk(78.1%, 63.3%, 0%, 49.8%)
CIE-LAB	lab(23.13, 23.45, -47.86)
CIE-LCH	lch(23.13, 53.30, 296.10°)
OKLab	oklab(34.63% -0.0048 -0.1383)
OKLCH	oklch(34.63% 0.138 268)
XYZ	xyz(5.3903, 3.8378, 20.8746)
Luminance	0.0384 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2F80 #806D1C

analogous

#1C6180 #1C2F80 #3B1C80

triadic

#1C2F80 #801C2F #2F801C

tetradic

#1C2F80 #801C61 #806D1C #1C803B

square

#1C2F80 #801C61 #806D1C #1C803B

split-complementary

#1C2F80 #803B1C #61801C

monochromatic

#060A1C #111D4E #1C2F80 #2741B2 #415DD5

Accessibility & contrast

On white

11.88

#1C2F80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#1C2F80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2F80

11.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2F80	#FFFFFF	#000000	##FFFFFF
##1C2F80	1.00	11.88	1.77	11.88
#FFFFFF	11.88	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C83

Deuteranopia (green-blind)

#00337E

Tritanopia (blue-blind)

#004452

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1c2f80;
/* rgb */ color: rgb(28, 47, 128);
/* oklch */ color: oklch(34.6% 0.138 268.0);

Tailwind

colors: {
  custom: {
    50: '#6967a6',
    500: '#1c2f80',
    950: '#000000',
  },
}

SCSS

$custom: #1c2f80;
$custom-light: #6967a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2f80",
  "rgb": {
    "r": 28,
    "g": 47,
    "b": 128
  },
  "hsl": {
    "h": 228.6,
    "s": 64.103,
    "l": 30.588
  },
  "oklch": {
    "l": 0.34634,
    "c": 0.13839,
    "h": 268
  },
  "luminance": 0.03838
}

Semantic roles & 50–950 ramp

primary

#1C2F80

secondary

#B39E44

accent

#C741E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1C2F80

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

Preview Lab → · Contrast checker → · Palette generator →