#5B7FDF
Closest named color: Soft Blue (#6488EA). oklch(61.6% 0.151 266.6), rgb(91, 127, 223).
Aa
Black text reads best on this color (5.54:1).
About this color
#5B7FDF is a medium-dark, vivid blue. In OKLCH its lightness is 62%, its chroma 0.151 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.030 away. Black text reads best on it, at 5.54:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 5.54:1 |
| White text | 3.78:1 |
Values
| HEX | #5B7FDF |
| RGB | rgb(91, 127, 223) |
| HSL | hsl(224, 67%, 62%) |
| OKLCH | oklch(61.6% 0.151 266.6) |
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 #5B7FDF | 3.78:1 | AA large text | Lc -70.7 | Content text, not long reading |
| Black text on #5B7FDF | 5.54:1 | AA | Lc 38.9 | Non-text elements, placeholder text |
| #5B7FDF text on white | 3.78:1 | AA large text | Lc 65.2 | Content text, not long reading |
| #5B7FDF text on black | 5.54:1 | AA | Lc -36.5 | 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
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E3EAF9
oklch(93.6% 0.022 265.8)
-
Step 200
200
#CDD9F5
oklch(88.5% 0.041 267.1)
-
Step 300
300
#ABC0F1
oklch(80.9% 0.073 266.7)
-
Step 400
400
#7F9EEB
oklch(70.8% 0.119 266.7)
-
Step 500
500 (this color)
#5B7FDF
oklch(61.6% 0.151 266.6)
-
Step 600
600
#476BD2
oklch(55.6% 0.164 266.6)
-
Step 700
700
#3959B6
oklch(49.2% 0.152 266.5)
-
Step 800
800
#2F4993
oklch(42.7% 0.126 266.5)
-
Step 900
900
#293E75
oklch(37.7% 0.098 266.1)
-
Step 950
950
#182545
oklch(27.1% 0.062 265.8)
#5B7FDF 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) | #5489E3 | 0.026 |
| Deuteranopia (no green cones) | #417EDD | 0.027 |
| Tritanopia (no blue cones) | #0094A4 | 0.131 |
| Achromatopsia (no color) | #838383 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B7FDF
#5B7FDF
oklch(61.6% 0.151 266.6)
- #A67E00
#A67E00
oklch(61.5% 0.126 86.2)
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 #5B7FDF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.030
- Dark Sky Blue #448EE4 ΔE 0.041
- Cornflower #6A79F7 ΔE 0.045
- Chefchaouen Blue #4895EF ΔE 0.058
- Cornflower Blue #6495ED ΔE 0.061
- Water Blue #0E87CC ΔE 0.063
- Windows Blue #3778BF ΔE 0.065
- Clear Blue #247AFD ΔE 0.065
Use #5B7FDF 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.