#375DEC
Closest named color: Neon Blue (#4361EE). oklch(54.2% 0.219 267), rgb(55, 93, 236).
Aa
White text reads best on this color (5.33:1).
About this color
#375DEC is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.219 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.017 away. White text reads best on it, at 5.33:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.219) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 3.93:1 |
| White text | 5.33:1 |
Values
| HEX | #375DEC |
| RGB | rgb(55, 93, 236) |
| HSL | hsl(227, 83%, 57%) |
| OKLCH | oklch(54.2% 0.219 267) |
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 #375DEC | 5.33:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #375DEC | 3.93:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #375DEC text on white | 5.33:1 | AA | Lc 75.8 | Fine for body text |
| #375DEC text on black | 3.93:1 | AA large text | Lc -25.9 | 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
#F1F5FF
oklch(97% 0.014 268.5)
-
Step 100
100
#E1EAFE
oklch(93.6% 0.029 266.4)
-
Step 200
200
#C9D9FE
oklch(88.5% 0.054 266.8)
-
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
#547EFF
oklch(63.1% 0.197 267)
-
Step 600
600 (this color)
#375DEC
oklch(54.2% 0.219 267)
-
Step 700
700
#2E50D2
oklch(49.2% 0.204 267)
-
Step 800
800
#2642AA
oklch(42.7% 0.17 267.1)
-
Step 900
900
#223A86
oklch(37.8% 0.131 266.7)
-
Step 950
950
#14234F
oklch(27.1% 0.083 266.7)
#375DEC 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) | #0074F1 | 0.054 |
| Deuteranopia (no green cones) | #0063E9 | 0.028 |
| Tritanopia (no blue cones) | #00829C | 0.171 |
| Achromatopsia (no color) | #6B6B6B | 0.220 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #375DEC
#375DEC
oklch(54.2% 0.219 267)
- #8B6A00
#8B6A00
oklch(54.2% 0.111 87)
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 #375DEC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.017
- Azul #1D5DEC ΔE 0.019
- Warm Blue #4B57DB ΔE 0.034
- Bright Blue #0165FC ΔE 0.036
- Royal Blue #4169E1 ΔE 0.036
- Cerulean Blue #056EEE ΔE 0.041
- Electric Blue #0652FF ΔE 0.048
- Clear Blue #247AFD ΔE 0.070
Use #375DEC 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.