#1F508C#1F508C

#1F508C is a dark, moderate cyan. Relative luminance 0.079; OKLCH L 43.1% C 0.112 H 255.3°. Best body text is #FFFFFF at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#1F508C
RGB	rgb(31, 80, 140)
HSL	hsl(213, 64%, 34%)
HSV	hsv(213, 78%, 55%)
CMYK	cmyk(77.9%, 42.9%, 0%, 45.1%)
CIE-LAB	lab(33.82, 5.89, -38.03)
CIE-LCH	lch(33.82, 38.49, 278.80°)
OKLab	oklab(43.09% -0.0285 -0.1088)
OKLCH	oklch(43.09% 0.112 255.3)
XYZ	xyz(8.1656, 7.9211, 25.9044)
Luminance	0.0792 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F508C #8C5B1F

analogous

#1F868C #1F508C #251F8C

triadic

#1F508C #8C1F50 #508C1F

tetradic

#1F508C #8C1F86 #8C5B1F #1F8C25

square

#1F508C #8C1F86 #8C5B1F #1F8C25

split-complementary

#1F508C #8C251F #868C1F

monochromatic

#091728 #14335A #1F508C #2A6DBE #4E8CD8

Accessibility & contrast

On white

8.13

#1F508C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#1F508C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F508C

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F508C	#FFFFFF	#000000	##FFFFFF
##1F508C	1.00	8.13	2.58	8.13
#FFFFFF	8.13	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#33558E

Deuteranopia (green-blind)

#204B8B

Tritanopia (blue-blind)

#005E67

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1f508c;
/* rgb */ color: rgb(31, 80, 140);
/* oklch */ color: oklch(43.1% 0.112 255.3);

Tailwind

colors: {
  custom: {
    50: '#6b80ae',
    500: '#1f508c',
    950: '#000000',
  },
}

SCSS

$custom: #1f508c;
$custom-light: #6b80ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1f508c",
  "rgb": {
    "r": 31,
    "g": 80,
    "b": 140
  },
  "hsl": {
    "h": 213.028,
    "s": 63.743,
    "l": 33.529
  },
  "oklch": {
    "l": 0.43089,
    "c": 0.11242,
    "h": 255.3
  },
  "luminance": 0.07922
}

Semantic roles & 50–950 ramp

primary

#1F508C

secondary

#BB894C

accent

#9C41E7

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #1F508C

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

Preview Lab → · Contrast checker → · Palette generator →