#215CE4
Closest named color: Azul (#1D5DEC). oklch(52.6% 0.215 263.2), rgb(33, 92, 228).
Aa
White text reads best on this color (5.65:1).
About this color
#215CE4 is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.215 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Azul (#1D5DEC), ΔE 0.012 away. White text reads best on it, at 5.65:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.215) |
| Temperature | cool |
| Nearest name | Azul (#1D5DEC) |
| Black text | 3.71:1 |
| White text | 5.65:1 |
Values
| HEX | #215CE4 |
| RGB | rgb(33, 92, 228) |
| HSL | hsl(222, 78%, 51%) |
| OKLCH | oklch(52.6% 0.215 263.2) |
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 #215CE4 | 5.65:1 | AA | Lc -82.8 | Fine for body text |
| Black text on #215CE4 | 3.71:1 | AA large text | Lc 26.6 | Dividers and decoration only |
| #215CE4 text on white | 5.65:1 | AA | Lc 77.5 | Fine for body text |
| #215CE4 text on black | 3.71:1 | AA large text | Lc -24.3 | 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
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFD
oklch(93.5% 0.028 263.4)
-
Step 200
200
#C7DAFE
oklch(88.6% 0.054 263.2)
-
Step 300
300
#A0C1FF
oklch(80.9% 0.095 262.7)
-
Step 400
400
#6D9DFF
oklch(70.6% 0.153 263.3)
-
Step 500
500
#4681FF
oklch(63.1% 0.198 263.1)
-
Step 600
600 (this color)
#215CE4
oklch(52.6% 0.215 263.2)
-
Step 700
700
#1D53D0
oklch(49% 0.201 263.2)
-
Step 800
800
#1A45A8
oklch(42.7% 0.166 263.3)
-
Step 900
900
#1B3C85
oklch(37.8% 0.129 263.3)
-
Step 950
950
#10244E
oklch(27.1% 0.082 263)
#215CE4 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) | #0070E9 | 0.047 |
| Deuteranopia (no green cones) | #005EE1 | 0.013 |
| Tritanopia (no blue cones) | #007F97 | 0.165 |
| Achromatopsia (no color) | #676767 | 0.216 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #215CE4
#215CE4
oklch(52.6% 0.215 263.2)
- #886400
#886400
oklch(52.6% 0.108 83.8)
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 #215CE4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Azul #1D5DEC ΔE 0.012
- Neon Blue #4361EE ΔE 0.037
- Warm Blue #4B57DB ΔE 0.040
- Bright Blue #0165FC ΔE 0.041
- Cerulean Blue #056EEE ΔE 0.044
- Royal Blue #4169E1 ΔE 0.045
- Electric Blue #0652FF ΔE 0.047
- Blue Blue #2242C7 ΔE 0.075
Use #215CE4 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.