#1C4F8E#1C4F8E

#1C4F8E is a dark, moderate cyan. Relative luminance 0.078; OKLCH L 42.9% C 0.117 H 255.7°. Best body text is #FFFFFF at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#1C4F8E
RGB	rgb(28, 79, 142)
HSL	hsl(213, 67%, 33%)
HSV	hsv(213, 80%, 56%)
CMYK	cmyk(80.3%, 44.4%, 0%, 44.3%)
CIE-LAB	lab(33.54, 6.98, -39.70)
CIE-LCH	lch(33.54, 40.31, 279.98°)
OKLab	oklab(42.89% -0.029 -0.1137)
OKLCH	oklch(42.89% 0.117 255.7)
XYZ	xyz(8.1555, 7.7909, 26.6599)
Luminance	0.0779 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4F8E #8E5B1C

analogous

#1C888E #1C4F8E #221C8E

triadic

#1C4F8E #8E1C4F #4F8E1C

tetradic

#1C4F8E #8E1C88 #8E5B1C #1C8E22

square

#1C4F8E #8E1C88 #8E5B1C #1C8E22

split-complementary

#1C4F8E #8E221C #888E1C

monochromatic

#081628 #12335B #1C4F8E #266BC1 #498BDB

Accessibility & contrast

On white

8.21

#1C4F8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#1C4F8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4F8E

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4F8E	#FFFFFF	#000000	##FFFFFF
##1C4F8E	1.00	8.21	2.56	8.21
#FFFFFF	8.21	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F5490

Deuteranopia (green-blind)

#194A8D

Tritanopia (blue-blind)

#005E67

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1c4f8e;
/* rgb */ color: rgb(28, 79, 142);
/* oklch */ color: oklch(42.9% 0.117 255.7);

Tailwind

colors: {
  custom: {
    50: '#6b7faf',
    500: '#1c4f8e',
    950: '#000000',
  },
}

SCSS

$custom: #1c4f8e;
$custom-light: #6b7faf;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4f8e",
  "rgb": {
    "r": 28,
    "g": 79,
    "b": 142
  },
  "hsl": {
    "h": 213.158,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.4289,
    "c": 0.11736,
    "h": 255.7
  },
  "luminance": 0.07792
}

Semantic roles & 50–950 ramp

primary

#1C4F8E

secondary

#BD8949

accent

#9D3EEA

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #1C4F8E

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

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