#1F749E#1F749E
#1F749E is a mid, moderate cyan. Relative luminance 0.153; OKLCH L 53.0% C 0.101 H 235.5°. Best body text is #FFFFFF at 5.18:1 contrast (WCAG AA passes).
Color values
| HEX | #1F749E |
|---|---|
| RGB | rgb(31, 116, 158) |
| HSL | hsl(200, 67%, 37%) |
| HSV | hsv(200, 80%, 62%) |
| CMYK | cmyk(80.4%, 26.6%, 0%, 38%) |
| CIE-LAB | lab(45.97, -9.65, -29.63) |
| CIE-LCH | lch(45.97, 31.16, 251.96°) |
| OKLab | oklab(52.98% -0.0574 -0.0837) |
| OKLCH | oklch(52.98% 0.101 235.5) |
| XYZ | xyz(12.9795, 15.2491, 34.6004) |
| Luminance | 0.1525 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Ocean Blue (survey)
#03719C
ΔE00 1.54
Cerulean
#007BA7
ΔE00 2.86
Nice Blue
#107AB0
ΔE00 3.37
Sea Blue
#047495
ΔE00 4.02
Muted Blue
#3B719F
ΔE00 4.58
Peacock Blue
#016795
ΔE00 4.85
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F749E #9E491F
analogous
#1F9E89 #1F749E #1F349E
triadic
#1F749E #9E1F74 #749E1F
tetradic
#1F749E #891F9E #9E491F #349E1F
square
#1F749E #891F9E #9E491F #349E1F
split-complementary
#1F749E #9E1F34 #9E891F
monochromatic
#0B2938 #154E6B #1F749E #299AD1 #59B2DE
Accessibility & contrast
On white
5.18
#1F749E on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.05
#1F749E on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #1F749E
5.18:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F749E | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F749E | 1.00 | 5.18 | 4.05 | 5.18 |
| #FFFFFF | 5.18 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.05 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.18 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6073A0
Deuteranopia (green-blind)
#4F689D
Tritanopia (blue-blind)
#007F82
Achromatopsia (no color)
#6D6D6D
Design tokens & code
CSS
--color: #1f749e; /* rgb */ color: rgb(31, 116, 158); /* oklch */ color: oklch(53.0% 0.101 235.5);
Tailwind
colors: {
custom: {
50: '#709cbb',
500: '#1f749e',
950: '#000000',
},
}SCSS
$custom: #1f749e; $custom-light: #709cbb; $custom-dark: #000000;
JSON
{
"hex": "#1f749e",
"rgb": {
"r": 31,
"g": 116,
"b": 158
},
"hsl": {
"h": 199.843,
"s": 67.196,
"l": 37.059
},
"oklch": {
"l": 0.52978,
"c": 0.10148,
"h": 235.5
},
"luminance": 0.15251
}Semantic roles & 50–950 ramp
primary
#1F749E
secondary
#C27A56
accent
#773EEA
background
#F7F9FB
surface
#EDF2F6
border
#C8CCD0
text
#090E11
muted
#7B7E80