#1A3F65#1A3F65

#1A3F65 is a dark, moderate cyan. Relative luminance 0.047; OKLCH L 36.1% C 0.078 H 251.4°. Best body text is #FFFFFF at 10.81:1 contrast (WCAG AA passes).

Color values

HEX	#1A3F65
RGB	rgb(26, 63, 101)
HSL	hsl(210, 59%, 25%)
HSV	hsv(210, 74%, 40%)
CMYK	cmyk(74.3%, 37.6%, 0%, 60.4%)
CIE-LAB	lab(25.90, 0.95, -26.18)
CIE-LCH	lch(25.90, 26.20, 272.09°)
OKLab	oklab(36.1% -0.025 -0.0744)
OKLCH	oklch(36.1% 0.078 251.4)
XYZ	xyz(4.5516, 4.7137, 12.9794)
Luminance	0.0471 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3F65 #65401A

analogous

#1A6565 #1A3F65 #1B1A65

triadic

#1A3F65 #651A3F #3F651A

tetradic

#1A3F65 #651A65 #65401A #1A651B

square

#1A3F65 #651A65 #65401A #1A651B

split-complementary

#1A3F65 #651B1A #65651A

monochromatic

#060F18 #0D2134 #1A3F65 #275D96 #337CC6

Accessibility & contrast

On white

10.81

#1A3F65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#1A3F65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3F65

10.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3F65	#FFFFFF	#000000	##FFFFFF
##1A3F65	1.00	10.81	1.94	10.81
#FFFFFF	10.81	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E4167

Deuteranopia (green-blind)

#233A64

Tritanopia (blue-blind)

#00484D

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1a3f65;
/* rgb */ color: rgb(26, 63, 101);
/* oklch */ color: oklch(36.1% 0.078 251.4);

Tailwind

colors: {
  custom: {
    50: '#617391',
    500: '#1a3f65',
    950: '#000000',
  },
}

SCSS

$custom: #1a3f65;
$custom-light: #617391;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3f65",
  "rgb": {
    "r": 26,
    "g": 63,
    "b": 101
  },
  "hsl": {
    "h": 210.4,
    "s": 59.055,
    "l": 24.902
  },
  "oklch": {
    "l": 0.36101,
    "c": 0.07847,
    "h": 251.4
  },
  "luminance": 0.04714
}

Semantic roles & 50–950 ramp

primary

#1A3F65

secondary

#9B6E40

accent

#9546E2

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#05080C

muted

#7A7B7D

Preview Lab

Preview with #1A3F65

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

Preview Lab → · Contrast checker → · Palette generator →