#507DFB
Closest named color: Cornflower (#6A79F7). oklch(62.5% 0.194 266.1), rgb(80, 125, 251).
Aa
Black text reads best on this color (5.66:1).
About this color
#507DFB is a medium-light, vivid blue. In OKLCH its lightness is 62%, its chroma 0.194 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 5.66:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.194) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.66:1 |
| White text | 3.70:1 |
Values
| HEX | #507DFB |
| RGB | rgb(80, 125, 251) |
| HSL | hsl(224, 96%, 65%) |
| OKLCH | oklch(62.5% 0.194 266.1) |
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 #507DFB | 3.70:1 | AA large text | Lc -69.7 | Content text, not long reading |
| Black text on #507DFB | 5.66:1 | AA | Lc 39.8 | Non-text elements, placeholder text |
| #507DFB text on white | 3.70:1 | AA large text | Lc 64.2 | Content text, not long reading |
| #507DFB text on black | 5.66:1 | AA | Lc -37.4 | 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
#A4C0FF
oklch(81% 0.095 265.8)
-
Step 400
400
#749CFF
oklch(70.8% 0.152 266)
-
Step 500
500 (this color)
#507DFB
oklch(62.5% 0.194 266.1)
-
Step 600
600
#3964EC
oklch(55.5% 0.211 266.2)
-
Step 700
700
#2C52CE
oklch(49.1% 0.196 266.1)
-
Step 800
800
#2544A6
oklch(42.7% 0.162 266.1)
-
Step 900
900
#223B84
oklch(37.8% 0.127 266.2)
-
Step 950
950
#14234D
oklch(27% 0.08 266.3)
#507DFB 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) | #318DFF | 0.042 |
| Deuteranopia (no green cones) | #007DF8 | 0.043 |
| Tritanopia (no blue cones) | #009BB0 | 0.159 |
| Achromatopsia (no color) | #858585 | 0.194 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #507DFB
#507DFB
oklch(62.5% 0.194 266.1)
- #AA8100
#AA8100
oklch(62.6% 0.128 86.1)
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 #507DFB, closest first.
No curated palette has a color within ΔE 0.04 of #507DFB.
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 0.035
- Soft Blue #6488EA ΔE 0.047
- Dodger Blue #1E90FF ΔE 0.051
- Dark Sky Blue #448EE4 ΔE 0.060
- Royal Blue #4169E1 ΔE 0.065
- Chefchaouen Blue #4895EF ΔE 0.066
- Cerulean Blue #056EEE ΔE 0.067
Use #507DFB 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.