#215DCD
Closest named color: Warm Blue (#4B57DB). oklch(50.9% 0.185 261.5), rgb(33, 93, 205).
Aa
White text reads best on this color (5.97:1).
About this color
#215DCD is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.185 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.046 away. White text reads best on it, at 5.97:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.185) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.51:1 |
| White text | 5.97:1 |
Values
| HEX | #215DCD |
| RGB | rgb(33, 93, 205) |
| HSL | hsl(219, 72%, 47%) |
| OKLCH | oklch(50.9% 0.185 261.5) |
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 #215DCD | 5.97:1 | AA | Lc -84.5 | Fine for body text |
| Black text on #215DCD | 3.51:1 | AA large text | Lc 24.8 | Dividers and decoration only |
| #215DCD text on white | 5.97:1 | AA | Lc 79.3 | Fine for body text |
| #215DCD text on black | 3.51:1 | AA large text | Lc -22.5 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EAFC
oklch(93.5% 0.027 262.3)
-
Step 200
200
#C7DAFB
oklch(88.5% 0.05 261.5)
-
Step 300
300
#A1C1FB
oklch(80.8% 0.09 262.1)
-
Step 400
400
#6D9FF9
oklch(70.7% 0.143 261.4)
-
Step 500
500
#4684F6
oklch(63.1% 0.183 261.3)
-
Step 600
600
#286AE5
oklch(55.6% 0.199 261.4)
-
Step 700
700 (this color)
#215DCD
oklch(50.9% 0.185 261.5)
-
Step 800
800
#1948A1
oklch(42.7% 0.153 261.6)
-
Step 900
900
#1A3E80
oklch(37.8% 0.119 261.3)
-
Step 950
950
#10254B
oklch(27.1% 0.076 261.2)
#215DCD 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) | #006BD1 | 0.035 |
| Deuteranopia (no green cones) | #005CCB | 0.014 |
| Tritanopia (no blue cones) | #00798C | 0.142 |
| Achromatopsia (no color) | #636363 | 0.185 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #215DCD
#215DCD
oklch(50.9% 0.185 261.5)
- #845E00
#845E00
oklch(50.8% 0.105 81)
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 #215DCD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.046
- Azul #1D5DEC ΔE 0.048
- Royal Blue #4169E1 ΔE 0.054
- Mid Blue #276AB3 ΔE 0.057
- Neon Blue #4361EE ΔE 0.061
- Cerulean Blue #056EEE ΔE 0.063
- Blue Blue #2242C7 ΔE 0.064
- Iris #6258C4 ΔE 0.072
Use #215DCD 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.