#5B7FC7
Closest named color: Cool Blue (#4984B8). oklch(60.2% 0.118 263.2), rgb(91, 127, 199).
Aa
Black text reads best on this color (5.30:1).
About this color
#5B7FC7 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.118 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.035 away. Black text reads best on it, at 5.30:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.30:1 |
| White text | 3.95:1 |
Values
| HEX | #5B7FC7 |
| RGB | rgb(91, 127, 199) |
| HSL | hsl(220, 49%, 57%) |
| OKLCH | oklch(60.2% 0.118 263.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #5B7FC7 | 3.95:1 | AA large text | Lc -72.3 | Content text, not long reading |
| Black text on #5B7FC7 | 5.30:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #5B7FC7 text on white | 3.95:1 | AA large text | Lc 66.8 | Content text, not long reading |
| #5B7FC7 text on black | 5.30:1 | AA | Lc -34.9 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CEDAEF
oklch(88.6% 0.032 261.7)
-
Step 300
300
#ADC1E7
oklch(80.9% 0.058 263.2)
-
Step 400
400
#82A0DB
oklch(70.6% 0.093 263.4)
-
Step 500
500 (this color)
#5B7FC7
oklch(60.2% 0.118 263.2)
-
Step 600
600
#4B70BE
oklch(55.5% 0.129 263.6)
-
Step 700
700
#3C5EA4
oklch(49.2% 0.119 263.2)
-
Step 800
800
#324D85
oklch(42.8% 0.099 263.4)
-
Step 900
900
#2C406A
oklch(37.6% 0.077 263.8)
-
Step 950
950
#1A263E
oklch(27% 0.048 263.3)
#5B7FC7 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #6285CA | 0.019 |
| Deuteranopia (no green cones) | #557BC5 | 0.014 |
| Tritanopia (no blue cones) | #1E8F99 | 0.107 |
| Achromatopsia (no color) | #808080 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B7FC7
#5B7FC7
oklch(60.2% 0.118 263.2)
- #A37915
#A37915
oklch(60.2% 0.118 82.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #5B7FC7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.035
- Steel Blue #4682B4 ΔE 0.040
- Windows Blue #3778BF ΔE 0.045
- Off Blue #5684AE ΔE 0.045
- Faded Blue #658CBB ΔE 0.047
- Dusty Blue #5A86AD ΔE 0.049
- Water Blue #0E87CC ΔE 0.051
- Dark Sky Blue #448EE4 ΔE 0.054
Use #5B7FC7 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.