#436CF7
Closest named color: Neon Blue (#4361EE). oklch(58.3% 0.213 267), rgb(67, 108, 247).
Aa
Black text reads best on this color (4.72:1).
About this color
#436CF7 is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.213 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.028 away. Black text reads best on it, at 4.72:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.213) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 4.72:1 |
| White text | 4.44:1 |
Values
| HEX | #436CF7 |
| RGB | rgb(67, 108, 247) |
| HSL | hsl(226, 92%, 62%) |
| OKLCH | oklch(58.3% 0.213 267) |
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 #436CF7 | 4.44:1 | AA large text | Lc -75.8 | Fine for body text |
| Black text on #436CF7 | 4.72:1 | AA | Lc 33.8 | Non-text elements, placeholder text |
| #436CF7 text on white | 4.44:1 | AA large text | Lc 70.3 | Content text, not long reading |
| #436CF7 text on black | 4.72:1 | AA | Lc -31.4 | 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 600.
-
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
#A5BFFF
oklch(80.9% 0.095 267.2)
-
Step 400
400
#769BFF
oklch(70.7% 0.152 267.2)
-
Step 500
500
#547EFE
oklch(63.1% 0.196 267)
-
Step 600
600 (this color)
#436CF7
oklch(58.3% 0.213 267)
-
Step 700
700
#2F51CF
oklch(49.2% 0.198 267)
-
Step 800
800
#2743A7
oklch(42.7% 0.164 267)
-
Step 900
900
#233A84
oklch(37.6% 0.128 267)
-
Step 950
950
#15234D
oklch(27% 0.08 267.1)
#436CF7 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) | #0080FC | 0.051 |
| Deuteranopia (no green cones) | #0070F4 | 0.034 |
| Tritanopia (no blue cones) | #008EA7 | 0.168 |
| Achromatopsia (no color) | #787878 | 0.213 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #436CF7
#436CF7
oklch(58.3% 0.213 267)
- #9A7500
#9A7500
oklch(58.3% 0.119 86.4)
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 #436CF7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.028
- Royal Blue #4169E1 ΔE 0.034
- Clear Blue #247AFD ΔE 0.036
- Cerulean Blue #056EEE ΔE 0.036
- Bright Blue #0165FC ΔE 0.043
- Azul #1D5DEC ΔE 0.053
- Cornflower #6A79F7 ΔE 0.058
- Warm Blue #4B57DB ΔE 0.063
Use #436CF7 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.