#215CDC
Closest named color: Azul (#1D5DEC). oklch(51.9% 0.205 262.8), rgb(33, 92, 220).
Aa
White text reads best on this color (5.78:1).
About this color
#215CDC is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.205 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Azul (#1D5DEC), ΔE 0.025 away. White text reads best on it, at 5.78:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.205) |
| Temperature | cool |
| Nearest name | Azul (#1D5DEC) |
| Black text | 3.62:1 |
| White text | 5.78:1 |
Values
| HEX | #215CDC |
| RGB | rgb(33, 92, 220) |
| HSL | hsl(221, 74%, 50%) |
| OKLCH | oklch(51.9% 0.205 262.8) |
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 #215CDC | 5.78:1 | AA | Lc -83.5 | Fine for body text |
| Black text on #215CDC | 3.62:1 | AA large text | Lc 25.9 | Dividers and decoration only |
| #215CDC text on white | 5.78:1 | AA | Lc 78.2 | Fine for body text |
| #215CDC text on black | 3.62:1 | AA large text | Lc -23.6 | 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 700.
-
Step 50
50
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFE
oklch(93.6% 0.029 264.4)
-
Step 200
200
#C6DAFF
oklch(88.5% 0.056 262.8)
-
Step 300
300
#A0C1FF
oklch(80.9% 0.095 262.7)
-
Step 400
400
#6C9EFF
oklch(70.7% 0.152 262.5)
-
Step 500
500
#4581FF
oklch(63.1% 0.198 262.9)
-
Step 600
600
#2565F1
oklch(55.5% 0.22 262.8)
-
Step 700
700 (this color)
#215CDC
oklch(51.9% 0.205 262.8)
-
Step 800
800
#1645AA
oklch(42.7% 0.17 262.7)
-
Step 900
900
#183C86
oklch(37.8% 0.131 262.5)
-
Step 950
950
#0F244F
oklch(27.1% 0.084 262.6)
#215CDC 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) | #006EE0 | 0.043 |
| Deuteranopia (no green cones) | #005DDA | 0.012 |
| Tritanopia (no blue cones) | #007D93 | 0.158 |
| Achromatopsia (no color) | #656565 | 0.206 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #215CDC
#215CDC
oklch(51.9% 0.205 262.8)
- #866200
#866200
oklch(51.9% 0.107 83.4)
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 #215CDC, closest first.
No curated palette has a color within ΔE 0.04 of #215CDC.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Azul #1D5DEC ΔE 0.025
- Warm Blue #4B57DB ΔE 0.039
- Neon Blue #4361EE ΔE 0.044
- Royal Blue #4169E1 ΔE 0.046
- Cerulean Blue #056EEE ΔE 0.049
- Bright Blue #0165FC ΔE 0.052
- Electric Blue #0652FF ΔE 0.058
- Blue Blue #2242C7 ΔE 0.068
Use #215CDC 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.