#1D538E#1D538E

#1D538E is a dark, moderate cyan. Relative luminance 0.084; OKLCH L 43.9% C 0.112 H 253.5°. Best body text is #FFFFFF at 7.84:1 contrast (WCAG AA passes).

Color values

HEX	#1D538E
RGB	rgb(29, 83, 142)
HSL	hsl(211, 66%, 34%)
HSV	hsv(211, 80%, 56%)
CMYK	cmyk(79.6%, 41.5%, 0%, 44.3%)
CIE-LAB	lab(34.80, 4.45, -37.69)
CIE-LCH	lch(34.80, 37.95, 276.74°)
OKLab	oklab(43.88% -0.032 -0.1077)
OKLCH	oklch(43.88% 0.112 253.5)
XYZ	xyz(8.4806, 8.3997, 26.7603)
Luminance	0.0840 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D538E #8E581D

analogous

#1D8B8E #1D538E #1F1D8E

triadic

#1D538E #8E1D53 #538E1D

tetradic

#1D538E #8E1D8B #8E581D #1D8E1F

square

#1D538E #8E1D8B #8E581D #1D8E1F

split-complementary

#1D538E #8E1F1D #8B8E1D

monochromatic

#081828 #13355B #1D538E #2771C1 #4B90DA

Accessibility & contrast

On white

7.84

#1D538E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#1D538E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D538E

7.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D538E	#FFFFFF	#000000	##FFFFFF
##1D538E	1.00	7.84	2.68	7.84
#FFFFFF	7.84	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#365790

Deuteranopia (green-blind)

#244D8D

Tritanopia (blue-blind)

#006169

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1d538e;
/* rgb */ color: rgb(29, 83, 142);
/* oklch */ color: oklch(43.9% 0.112 253.5);

Tailwind

colors: {
  custom: {
    50: '#6b82af',
    500: '#1d538e',
    950: '#000000',
  },
}

SCSS

$custom: #1d538e;
$custom-light: #6b82af;
$custom-dark: #000000;

JSON

{
  "hex": "#1d538e",
  "rgb": {
    "r": 29,
    "g": 83,
    "b": 142
  },
  "hsl": {
    "h": 211.327,
    "s": 66.082,
    "l": 33.529
  },
  "oklch": {
    "l": 0.43877,
    "c": 0.11236,
    "h": 253.5
  },
  "luminance": 0.08401
}

Semantic roles & 50–950 ramp

primary

#1D538E

secondary

#BD864A

accent

#983FE9

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #1D538E

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

Preview Lab → · Contrast checker → · Palette generator →