#5370FD
Closest named color: Cornflower (#6A79F7). oklch(60.3% 0.211 270.1), rgb(83, 112, 253).
Aa
Black text reads best on this color (5.10:1).
About this color
#5370FD is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.211 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.039 away. Black text reads best on it, at 5.10:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.211) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.10:1 |
| White text | 4.11:1 |
Values
| HEX | #5370FD |
| RGB | rgb(83, 112, 253) |
| HSL | hsl(230, 98%, 66%) |
| OKLCH | oklch(60.3% 0.211 270.1) |
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 #5370FD | 4.11:1 | AA large text | Lc -73.3 | Content text, not long reading |
| Black text on #5370FD | 5.10:1 | AA | Lc 36.3 | Non-text elements, placeholder text |
| #5370FD text on white | 4.11:1 | AA large text | Lc 67.8 | Content text, not long reading |
| #5370FD text on black | 5.10:1 | AA | Lc -33.9 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2E9FF
oklch(93.5% 0.031 271.7)
-
Step 200
200
#CBD8FF
oklch(88.5% 0.056 270.7)
-
Step 300
300
#A9BEFF
oklch(80.9% 0.095 270.4)
-
Step 400
400
#7C99FF
oklch(70.6% 0.153 270.2)
-
Step 500
500 (this color)
#5370FD
oklch(60.3% 0.211 270.1)
-
Step 600
600
#445DF7
oklch(55.7% 0.23 269.9)
-
Step 700
700
#374BD7
oklch(49.2% 0.213 270)
-
Step 800
800
#2D3FAE
oklch(42.8% 0.177 269.9)
-
Step 900
900
#273789
oklch(37.6% 0.138 270.1)
-
Step 950
950
#172150
oklch(26.9% 0.087 270.5)
#5370FD 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) | #0085FF | 0.060 |
| Deuteranopia (no green cones) | #0076FA | 0.048 |
| Tritanopia (no blue cones) | #0092AC | 0.172 |
| Achromatopsia (no color) | #7D7D7D | 0.212 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5370FD
#5370FD
oklch(60.3% 0.211 270.1)
- #9E7D00
#9E7D00
oklch(60.4% 0.123 90.1)
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 #5370FD, closest first.
No curated palette has a color within ΔE 0.04 of #5370FD.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.039
- Clear Blue #247AFD ΔE 0.039
- Neon Blue #4361EE ΔE 0.047
- Royal Blue #4169E1 ΔE 0.051
- Cerulean Blue #056EEE ΔE 0.057
- Medium Slate Blue #7B68EE ΔE 0.057
- Bright Blue #0165FC ΔE 0.063
- Soft Blue #6488EA ΔE 0.074
Use #5370FD 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.