#1C2F8A#1C2F8A

#1C2F8A is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.6% C 0.152 H 268.1°. Best body text is #FFFFFF at 11.52:1 contrast (WCAG AA passes).

Color values

HEX	#1C2F8A
RGB	rgb(28, 47, 138)
HSL	hsl(230, 66%, 33%)
HSV	hsv(230, 80%, 54%)
CMYK	cmyk(79.7%, 65.9%, 0%, 45.9%)
CIE-LAB	lab(24.05, 27.37, -52.62)
CIE-LCH	lch(24.05, 59.32, 297.48°)
OKLab	oklab(35.59% -0.005 -0.1523)
OKLCH	oklch(35.59% 0.152 268.1)
XYZ	xyz(6.0813, 4.1142, 24.5134)
Luminance	0.0411 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2F8A #8A771C

analogous

#1C668A #1C2F8A #401C8A

triadic

#1C2F8A #8A1C2F #2F8A1C

tetradic

#1C2F8A #8A1C66 #8A771C #1C8A40

square

#1C2F8A #8A1C66 #8A771C #1C8A40

split-complementary

#1C2F8A #8A401C #668A1C

monochromatic

#070C24 #121E57 #1C2F8A #2640BD #4760DA

Accessibility & contrast

On white

11.52

#1C2F8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#1C2F8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2F8A

11.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2F8A	#FFFFFF	#000000	##FFFFFF
##1C2F8A	1.00	11.52	1.82	11.52
#FFFFFF	11.52	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8D

Deuteranopia (green-blind)

#003488

Tritanopia (blue-blind)

#004758

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1c2f8a;
/* rgb */ color: rgb(28, 47, 138);
/* oklch */ color: oklch(35.6% 0.152 268.1);

Tailwind

colors: {
  custom: {
    50: '#6c67ad',
    500: '#1c2f8a',
    950: '#000000',
  },
}

SCSS

$custom: #1c2f8a;
$custom-light: #6c67ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2f8a",
  "rgb": {
    "r": 28,
    "g": 47,
    "b": 138
  },
  "hsl": {
    "h": 229.636,
    "s": 66.265,
    "l": 32.549
  },
  "oklch": {
    "l": 0.35594,
    "c": 0.15234,
    "h": 268.1
  },
  "luminance": 0.04115
}

Semantic roles & 50–950 ramp

primary

#1C2F8A

secondary

#BBA746

accent

#CC3FE9

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1C2F8A

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

Preview Lab → · Contrast checker → · Palette generator →