#1C338E#1C338E

#1C338E is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.8% C 0.153 H 267.2°. Best body text is #FFFFFF at 10.97:1 contrast (WCAG AA passes).

Color values

HEX	#1C338E
RGB	rgb(28, 51, 142)
HSL	hsl(228, 67%, 33%)
HSV	hsv(228, 80%, 56%)
CMYK	cmyk(80.3%, 64.1%, 0%, 44.3%)
CIE-LAB	lab(25.46, 26.20, -52.79)
CIE-LCH	lch(25.46, 58.93, 296.40°)
OKLab	oklab(36.75% -0.0076 -0.1527)
OKLCH	oklch(36.75% 0.153 267.2)
XYZ	xyz(6.5435, 4.5668, 26.1225)
Luminance	0.0457 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C338E #8E771C

analogous

#1C6C8E #1C338E #3E1C8E

triadic

#1C338E #8E1C33 #338E1C

tetradic

#1C338E #8E1C6C #8E771C #1C8E3E

square

#1C338E #8E1C6C #8E771C #1C8E3E

split-complementary

#1C338E #8E3E1C #6C8E1C

monochromatic

#080E28 #12215B #1C338E #2645C1 #4967DB

Accessibility & contrast

On white

10.97

#1C338E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1C338E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C338E

10.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C338E	#FFFFFF	#000000	##FFFFFF
##1C338E	1.00	10.97	1.91	10.97
#FFFFFF	10.97	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004291

Deuteranopia (green-blind)

#00378C

Tritanopia (blue-blind)

#004B5B

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1c338e;
/* rgb */ color: rgb(28, 51, 142);
/* oklch */ color: oklch(36.8% 0.153 267.2);

Tailwind

colors: {
  custom: {
    50: '#6c6ab0',
    500: '#1c338e',
    950: '#000000',
  },
}

SCSS

$custom: #1c338e;
$custom-light: #6c6ab0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c338e",
  "rgb": {
    "r": 28,
    "g": 51,
    "b": 142
  },
  "hsl": {
    "h": 227.895,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.36753,
    "c": 0.15288,
    "h": 267.2
  },
  "luminance": 0.04568
}

Semantic roles & 50–950 ramp

primary

#1C338E

secondary

#BDA649

accent

#C73EEA

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1C338E

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

Preview Lab → · Contrast checker → · Palette generator →