#1F5DA9#1F5DA9

#1F5DA9 is a mid, vivid cyan. Relative luminance 0.110; OKLCH L 48.1% C 0.137 H 255.8°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#1F5DA9
RGB	rgb(31, 93, 169)
HSL	hsl(213, 69%, 39%)
HSV	hsv(213, 82%, 66%)
CMYK	cmyk(81.7%, 45%, 0%, 33.7%)
CIE-LAB	lab(39.55, 8.84, -46.30)
CIE-LCH	lch(39.55, 47.13, 280.81°)
OKLab	oklab(48.13% -0.0336 -0.1328)
OKLCH	oklch(48.13% 0.137 255.8)
XYZ	xyz(11.6382, 10.9832, 39.0350)
Luminance	0.1099 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5DA9 #A96B1F

analogous

#1FA2A9 #1F5DA9 #261FA9

triadic

#1F5DA9 #A91F5D #5DA91F

tetradic

#1F5DA9 #A91FA2 #A96B1F #1FA926

square

#1F5DA9 #A91FA2 #A96B1F #1FA926

split-complementary

#1F5DA9 #A9261F #A2A91F

monochromatic

#0C2442 #164175 #1F5DA9 #2D7AD8 #609BE2

Accessibility & contrast

On white

6.57

#1F5DA9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#1F5DA9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F5DA9

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5DA9	#FFFFFF	#000000	##FFFFFF
##1F5DA9	1.00	6.57	3.20	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3564AC

Deuteranopia (green-blind)

#1757A7

Tritanopia (blue-blind)

#006F7A

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #1f5da9;
/* rgb */ color: rgb(31, 93, 169);
/* oklch */ color: oklch(48.1% 0.137 255.8);

Tailwind

colors: {
  custom: {
    50: '#728ac3',
    500: '#1f5da9',
    950: '#000000',
  },
}

SCSS

$custom: #1f5da9;
$custom-light: #728ac3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5da9",
  "rgb": {
    "r": 31,
    "g": 93,
    "b": 169
  },
  "hsl": {
    "h": 213.043,
    "s": 69,
    "l": 39.216
  },
  "oklch": {
    "l": 0.48125,
    "c": 0.13698,
    "h": 255.8
  },
  "luminance": 0.10985
}

Semantic roles & 50–950 ramp

primary

#1F5DA9

secondary

#C7975D

accent

#9D3CEC

background

#F7F8FC

surface

#EDF0F8

border

#C8CBD1

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #1F5DA9

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

Preview Lab → · Contrast checker → · Palette generator →