#1F5F9E#1F5F9E

#1F5F9E is a mid, moderate cyan. Relative luminance 0.109; OKLCH L 47.9% C 0.120 H 251.6°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#1F5F9E
RGB	rgb(31, 95, 158)
HSL	hsl(210, 67%, 37%)
HSV	hsv(210, 80%, 62%)
CMYK	cmyk(80.4%, 39.9%, 0%, 38%)
CIE-LAB	lab(39.48, 3.22, -39.87)
CIE-LCH	lch(39.48, 40.00, 274.61°)
OKLab	oklab(47.86% -0.0378 -0.1139)
OKLCH	oklch(47.86% 0.12 251.6)
XYZ	xyz(10.8265, 10.9430, 33.8827)
Luminance	0.1094 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5F9E #9E5E1F

analogous

#1F9E9E #1F5F9E #1F1F9E

triadic

#1F5F9E #9E1F5F #5F9E1F

tetradic

#1F5F9E #9E1F9E #9E5E1F #1F9E1F

square

#1F5F9E #9E1F9E #9E5E1F #1F9E1F

split-complementary

#1F5F9E #9E1F1F #9E9E1F

monochromatic

#0B2138 #15406B #1F5F9E #297ED1 #599CDE

Accessibility & contrast

On white

6.59

#1F5F9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#1F5F9E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F5F9E

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5F9E	#FFFFFF	#000000	##FFFFFF
##1F5F9E	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4163A1

Deuteranopia (green-blind)

#2C589D

Tritanopia (blue-blind)

#006E77

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #1f5f9e;
/* rgb */ color: rgb(31, 95, 158);
/* oklch */ color: oklch(47.9% 0.120 251.6);

Tailwind

colors: {
  custom: {
    50: '#6f8bbb',
    500: '#1f5f9e',
    950: '#000000',
  },
}

SCSS

$custom: #1f5f9e;
$custom-light: #6f8bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5f9e",
  "rgb": {
    "r": 31,
    "g": 95,
    "b": 158
  },
  "hsl": {
    "h": 209.764,
    "s": 67.196,
    "l": 37.059
  },
  "oklch": {
    "l": 0.47856,
    "c": 0.11996,
    "h": 251.6
  },
  "luminance": 0.10944
}

Semantic roles & 50–950 ramp

primary

#1F5F9E

secondary

#C28C56

accent

#933EEA

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#090C12

muted

#7B7D81

Preview Lab

Preview with #1F5F9E

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

Preview Lab → · Contrast checker → · Palette generator →