#4368EB
Closest named color: Royal Blue (#4169E1). oklch(56.6% 0.202 267.5), rgb(67, 104, 235).
Aa
White text reads best on this color (4.75:1).
About this color
#4368EB is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.202 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.016 away. White text reads best on it, at 4.75:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.202) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.41:1 |
| White text | 4.75:1 |
Values
| HEX | #4368EB |
| RGB | rgb(67, 104, 235) |
| HSL | hsl(227, 81%, 59%) |
| OKLCH | oklch(56.6% 0.202 267.5) |
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 #4368EB | 4.75:1 | AA | Lc -77.9 | Fine for body text |
| Black text on #4368EB | 4.41:1 | AA large text | Lc 31.6 | Non-text elements, placeholder text |
| #4368EB text on white | 4.75:1 | AA | Lc 72.5 | Content text, not long reading |
| #4368EB text on black | 4.41:1 | AA large text | Lc -29.2 | Dividers and decoration only |
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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFC
oklch(93.6% 0.026 266.6)
-
Step 200
200
#CAD9FC
oklch(88.5% 0.051 267)
-
Step 300
300
#A7BFFC
oklch(80.9% 0.091 267.7)
-
Step 400
400
#799BFB
oklch(70.6% 0.146 267.8)
-
Step 500
500
#587FF8
oklch(63% 0.186 267.4)
-
Step 600
600 (this color)
#4368EB
oklch(56.6% 0.202 267.5)
-
Step 700
700
#3352C9
oklch(49% 0.188 267.6)
-
Step 800
800
#2A44A3
oklch(42.7% 0.157 267.6)
-
Step 900
900
#263B81
oklch(37.8% 0.121 267.7)
-
Step 950
950
#16234B
oklch(26.9% 0.076 267.6)
#4368EB 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) | #007BEF | 0.051 |
| Deuteranopia (no green cones) | #006BE8 | 0.036 |
| Tritanopia (no blue cones) | #00889F | 0.162 |
| Achromatopsia (no color) | #737373 | 0.202 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4368EB
#4368EB
oklch(56.6% 0.202 267.5)
- #937100
#937100
oklch(56.6% 0.116 87.6)
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 #4368EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.016
- Neon Blue #4361EE ΔE 0.017
- Cerulean Blue #056EEE ΔE 0.034
- Azul #1D5DEC ΔE 0.043
- Warm Blue #4B57DB ΔE 0.045
- Bright Blue #0165FC ΔE 0.045
- Clear Blue #247AFD ΔE 0.050
- Dark Periwinkle #665FD1 ΔE 0.058
Use #4368EB 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.