#1C2B59#1C2B59

#1C2B59 is a dark, moderate blue. Relative luminance 0.027; OKLCH L 30.4% C 0.085 H 267.6°. Best body text is #FFFFFF at 13.64:1 contrast (WCAG AA passes).

Color values

HEX	#1C2B59
RGB	rgb(28, 43, 89)
HSL	hsl(225, 52%, 23%)
HSV	hsv(225, 69%, 35%)
CMYK	cmyk(68.5%, 51.7%, 0%, 65.1%)
CIE-LAB	lab(18.78, 10.61, -29.67)
CIE-LCH	lch(18.78, 31.51, 289.67°)
OKLab	oklab(30.37% -0.0036 -0.0849)
OKLCH	oklch(30.37% 0.085 267.6)
XYZ	xyz(3.1453, 2.6956, 9.8038)
Luminance	0.0270 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2B59 #594A1C

analogous

#1C4959 #1C2B59 #2B1C59

triadic

#1C2B59 #591C2B #2B591C

tetradic

#1C2B59 #591C49 #594A1C #1C592B

square

#1C2B59 #591C49 #594A1C #1C592B

split-complementary

#1C2B59 #592B1C #49591C

monochromatic

#070B17 #0D152A #1C2B59 #2B4188 #3958B6

Accessibility & contrast

On white

13.64

#1C2B59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#1C2B59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2B59

13.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2B59	#FFFFFF	#000000	##FFFFFF
##1C2B59	1.00	13.64	1.54	13.64
#FFFFFF	13.64	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13315B

Deuteranopia (green-blind)

#082B58

Tritanopia (blue-blind)

#00363D

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1c2b59;
/* rgb */ color: rgb(28, 43, 89);
/* oklch */ color: oklch(30.4% 0.085 267.6);

Tailwind

colors: {
  custom: {
    50: '#606388',
    500: '#1c2b59',
    950: '#000000',
  },
}

SCSS

$custom: #1c2b59;
$custom-light: #606388;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2b59",
  "rgb": {
    "r": 28,
    "g": 43,
    "b": 89
  },
  "hsl": {
    "h": 225.246,
    "s": 52.137,
    "l": 22.941
  },
  "oklch": {
    "l": 0.30365,
    "c": 0.08498,
    "h": 267.6
  },
  "luminance": 0.02696
}

Semantic roles & 50–950 ramp

primary

#1C2B59

secondary

#8F7C42

accent

#B84CDC

background

#F5F5F8

surface

#EAEAF0

border

#C6C6CB

text

#05050B

muted

#79797C

Preview Lab

Preview with #1C2B59

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

Preview Lab → · Contrast checker → · Palette generator →