#507DE8
Closest named color: Soft Blue (#6488EA). oklch(61.2% 0.169 264.7), rgb(80, 125, 232).
Aa
Black text reads best on this color (5.43:1).
About this color
#507DE8 is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.169 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.039 away. Black text reads best on it, at 5.43:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.169) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 5.43:1 |
| White text | 3.86:1 |
Values
| HEX | #507DE8 |
| RGB | rgb(80, 125, 232) |
| HSL | hsl(222, 77%, 61%) |
| OKLCH | oklch(61.2% 0.169 264.7) |
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 #507DE8 | 3.86:1 | AA large text | Lc -71.3 | Content text, not long reading |
| Black text on #507DE8 | 5.43:1 | AA | Lc 38.3 | Non-text elements, placeholder text |
| #507DE8 text on white | 3.86:1 | AA large text | Lc 65.8 | Content text, not long reading |
| #507DE8 text on black | 5.43:1 | AA | Lc -35.9 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CAD9F8
oklch(88.4% 0.046 264.9)
-
Step 300
300
#A6C0F7
oklch(80.8% 0.083 264.9)
-
Step 400
400
#779EF3
oklch(70.7% 0.132 264.6)
-
Step 500
500 (this color)
#507DE8
oklch(61.2% 0.169 264.7)
-
Step 600
600
#3C6ADD
oklch(55.7% 0.183 264.7)
-
Step 700
700
#2E57C0
oklch(49% 0.171 264.7)
-
Step 800
800
#27489B
oklch(42.7% 0.141 264.7)
-
Step 900
900
#243D7B
oklch(37.6% 0.11 265)
-
Step 950
950
#152448
oklch(26.9% 0.07 265)
#507DE8 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) | #4789EC | 0.030 |
| Deuteranopia (no green cones) | #297BE6 | 0.032 |
| Tritanopia (no blue cones) | #0096A7 | 0.141 |
| Achromatopsia (no color) | #828282 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #507DE8
#507DE8
oklch(61.2% 0.169 264.7)
- #A67C00
#A67C00
oklch(61.1% 0.125 84.7)
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 #507DE8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.039
- Cornflower #6A79F7 ΔE 0.039
- Dark Sky Blue #448EE4 ΔE 0.046
- Clear Blue #247AFD ΔE 0.046
- Royal Blue #4169E1 ΔE 0.056
- Dodger Blue #1E90FF ΔE 0.058
- Chefchaouen Blue #4895EF ΔE 0.062
- Cerulean Blue #056EEE ΔE 0.065
Use #507DE8 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.