#1C438F#1C438F

#1C438F is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.2% C 0.134 H 261.9°. Best body text is #FFFFFF at 9.34:1 contrast (WCAG AA passes).

Color values

HEX	#1C438F
RGB	rgb(28, 67, 143)
HSL	hsl(220, 67%, 34%)
HSV	hsv(220, 80%, 56%)
CMYK	cmyk(80.4%, 53.1%, 0%, 43.9%)
CIE-LAB	lab(30.02, 15.55, -45.99)
CIE-LCH	lch(30.02, 48.55, 288.68°)
OKLab	oklab(40.2% -0.0188 -0.1325)
OKLCH	oklch(40.2% 0.134 261.9)
XYZ	xyz(7.4422, 6.2435, 26.7942)
Luminance	0.0624 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C438F #8F681C

analogous

#1C7C8F #1C438F #2E1C8F

triadic

#1C438F #8F1C43 #438F1C

tetradic

#1C438F #8F1C7C #8F681C #1C8F2E

square

#1C438F #8F1C7C #8F681C #1C8F2E

split-complementary

#1C438F #8F2E1C #7C8F1C

monochromatic

#081329 #122B5C #1C438F #265BC2 #4A7BDC

Accessibility & contrast

On white

9.34

#1C438F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#1C438F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C438F

9.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C438F	#FFFFFF	#000000	##FFFFFF
##1C438F	1.00	9.34	2.25	9.34
#FFFFFF	9.34	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E4C92

Deuteranopia (green-blind)

#00428D

Tritanopia (blue-blind)

#005562

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1c438f;
/* rgb */ color: rgb(28, 67, 143);
/* oklch */ color: oklch(40.2% 0.134 261.9);

Tailwind

colors: {
  custom: {
    50: '#6b76b0',
    500: '#1c438f',
    950: '#000000',
  },
}

SCSS

$custom: #1c438f;
$custom-light: #6b76b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c438f",
  "rgb": {
    "r": 28,
    "g": 67,
    "b": 143
  },
  "hsl": {
    "h": 219.652,
    "s": 67.251,
    "l": 33.529
  },
  "oklch": {
    "l": 0.40201,
    "c": 0.13378,
    "h": 261.9
  },
  "luminance": 0.06244
}

Semantic roles & 50–950 ramp

primary

#1C438F

secondary

#BE9649

accent

#B03EEA

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1C438F

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

Preview Lab → · Contrast checker → · Palette generator →