#5B6FF0
Closest named color: Cornflower (#6A79F7). oklch(59.6% 0.194 272.5), rgb(91, 111, 240).
Aa
Black text reads best on this color (4.97:1).
About this color
#5B6FF0 is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.194 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.034 away. Black text reads best on it, at 4.97:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.194) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 4.97:1 |
| White text | 4.21:1 |
Values
| HEX | #5B6FF0 |
| RGB | rgb(91, 111, 240) |
| HSL | hsl(232, 83%, 65%) |
| OKLCH | oklch(59.6% 0.194 272.5) |
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 #5B6FF0 | 4.21:1 | AA large text | Lc -74.2 | Content text, not long reading |
| Black text on #5B6FF0 | 4.97:1 | AA | Lc 35.3 | Non-text elements, placeholder text |
| #5B6FF0 text on white | 4.21:1 | AA large text | Lc 68.7 | Content text, not long reading |
| #5B6FF0 text on black | 4.97:1 | AA | Lc -32.9 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3E9FD
oklch(93.5% 0.028 272.5)
-
Step 200
200
#CDD8FD
oklch(88.6% 0.052 272.2)
-
Step 300
300
#ACBDFE
oklch(80.9% 0.094 272.8)
-
Step 400
400
#8198FE
oklch(70.7% 0.151 272.4)
-
Step 500
500 (this color)
#5B6FF0
oklch(59.6% 0.194 272.5)
-
Step 600
600
#4F5FEC
oklch(55.7% 0.211 272.6)
-
Step 700
700
#404DCD
oklch(49.1% 0.196 272.4)
-
Step 800
800
#3540A6
oklch(42.7% 0.163 272.7)
-
Step 900
900
#2D3883
oklch(37.7% 0.126 272.6)
-
Step 950
950
#1A224D
oklch(27.1% 0.079 272.1)
#5B6FF0 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) | #0F82F4 | 0.062 |
| Deuteranopia (no green cones) | #0075ED | 0.058 |
| Tritanopia (no blue cones) | #008DA5 | 0.163 |
| Achromatopsia (no color) | #7B7B7B | 0.194 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B6FF0
#5B6FF0
oklch(59.6% 0.194 272.5)
- #997C00
#997C00
oklch(59.7% 0.122 92.4)
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 #5B6FF0, closest first.
No curated palette has a color within ΔE 0.04 of #5B6FF0.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.034
- Royal Blue #4169E1 ΔE 0.042
- Medium Slate Blue #7B68EE ΔE 0.045
- Neon Blue #4361EE ΔE 0.047
- Clear Blue #247AFD ΔE 0.050
- Dark Periwinkle #665FD1 ΔE 0.058
- Cerulean Blue #056EEE ΔE 0.060
- Soft Blue #6488EA ΔE 0.067
Use #5B6FF0 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.