#507BF7
Closest named color: Cornflower (#6A79F7). oklch(61.8% 0.191 266.4), rgb(80, 123, 247).
Aa
Black text reads best on this color (5.51:1).
About this color
#507BF7 is a medium-dark, vivid blue. In OKLCH its lightness is 62%, its chroma 0.191 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.029 away. Black text reads best on it, at 5.51:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.191) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.51:1 |
| White text | 3.80:1 |
Values
| HEX | #507BF7 |
| RGB | rgb(80, 123, 247) |
| HSL | hsl(225, 91%, 64%) |
| OKLCH | oklch(61.8% 0.191 266.4) |
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 #507BF7 | 3.80:1 | AA large text | Lc -70.7 | Content text, not long reading |
| Black text on #507BF7 | 5.51:1 | AA | Lc 38.9 | Non-text elements, placeholder text |
| #507BF7 text on white | 3.80:1 | AA large text | Lc 65.2 | Content text, not long reading |
| #507BF7 text on black | 5.51:1 | 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
#F1F5FE
oklch(97% 0.013 266.7)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C9D9FD
oklch(88.5% 0.053 266.4)
-
Step 300
300
#A5BFFE
oklch(80.8% 0.094 267)
-
Step 400
400
#759CFE
oklch(70.8% 0.15 266.3)
-
Step 500
500 (this color)
#507BF7
oklch(61.8% 0.191 266.4)
-
Step 600
600
#3B64EB
oklch(55.5% 0.209 266.5)
-
Step 700
700
#2E52CC
oklch(49% 0.193 266.5)
-
Step 800
800
#2644A5
oklch(42.6% 0.16 266.4)
-
Step 900
900
#233B83
oklch(37.8% 0.125 266.5)
-
Step 950
950
#14234D
oklch(27% 0.08 266.3)
#507BF7 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) | #318BFB | 0.042 |
| Deuteranopia (no green cones) | #007BF4 | 0.044 |
| Tritanopia (no blue cones) | #0098AD | 0.156 |
| Achromatopsia (no color) | #838383 | 0.192 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #507BF7
#507BF7
oklch(61.8% 0.191 266.4)
- #A77F00
#A77F00
oklch(61.8% 0.127 86.3)
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 #507BF7, closest first.
No curated palette has a color within ΔE 0.04 of #507BF7.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.029
- Clear Blue #247AFD ΔE 0.034
- Soft Blue #6488EA ΔE 0.048
- Dodger Blue #1E90FF ΔE 0.056
- Royal Blue #4169E1 ΔE 0.058
- Dark Sky Blue #448EE4 ΔE 0.060
- Cerulean Blue #056EEE ΔE 0.062
- Medium Slate Blue #7B68EE ΔE 0.065
Use #507BF7 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.