#1A3F63#1A3F63

#1A3F63 is a dark, moderate cyan. Relative luminance 0.047; OKLCH L 36.0% C 0.076 H 250.2°. Best body text is #FFFFFF at 10.85:1 contrast (WCAG AA passes).

Color values

HEX	#1A3F63
RGB	rgb(26, 63, 99)
HSL	hsl(210, 58%, 25%)
HSV	hsv(210, 74%, 39%)
CMYK	cmyk(73.7%, 36.4%, 0%, 61.2%)
CIE-LAB	lab(25.79, 0.15, -25.08)
CIE-LCH	lch(25.79, 25.08, 270.35°)
OKLab	oklab(35.97% -0.0256 -0.0711)
OKLCH	oklch(35.97% 0.076 250.2)
XYZ	xyz(4.4548, 4.6750, 12.4696)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3F63 #633E1A

analogous

#1A6363 #1A3F63 #1A1B63

triadic

#1A3F63 #631A3F #3F631A

tetradic

#1A3F63 #631A63 #633E1A #1B631A

square

#1A3F63 #631A63 #633E1A #1B631A

split-complementary

#1A3F63 #631A1B #63631A

monochromatic

#060F18 #0D2033 #1A3F63 #275E93 #337DC4

Accessibility & contrast

On white

10.85

#1A3F63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#1A3F63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3F63

10.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3F63	#FFFFFF	#000000	##FFFFFF
##1A3F63	1.00	10.85	1.94	10.85
#FFFFFF	10.85	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F4165

Deuteranopia (green-blind)

#253A62

Tritanopia (blue-blind)

#00474C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1a3f63;
/* rgb */ color: rgb(26, 63, 99);
/* oklch */ color: oklch(36.0% 0.076 250.2);

Tailwind

colors: {
  custom: {
    50: '#60738f',
    500: '#1a3f63',
    950: '#000000',
  },
}

SCSS

$custom: #1a3f63;
$custom-light: #60738f;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3f63",
  "rgb": {
    "r": 26,
    "g": 63,
    "b": 99
  },
  "hsl": {
    "h": 209.589,
    "s": 58.4,
    "l": 24.51
  },
  "oklch": {
    "l": 0.35974,
    "c": 0.07561,
    "h": 250.2
  },
  "luminance": 0.04675
}

Semantic roles & 50–950 ramp

primary

#1A3F63

secondary

#996C40

accent

#9346E2

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#05080C

muted

#7A7B7D

Preview Lab

Preview with #1A3F63

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

Preview Lab → · Contrast checker → · Palette generator →