#2154CE
Closest named color: Blue Blue (#2242C7). oklch(49.2% 0.197 263.6), rgb(33, 84, 206).
Aa
White text reads best on this color (6.51:1).
About this color
#2154CE is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.197 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.042 away. White text reads best on it, at 6.51:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.197) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.22:1 |
| White text | 6.51:1 |
Values
| HEX | #2154CE |
| RGB | rgb(33, 84, 206) |
| HSL | hsl(222, 72%, 47%) |
| OKLCH | oklch(49.2% 0.197 263.6) |
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 #2154CE | 6.51:1 | AA | Lc -86.7 | Fine for body text |
| Black text on #2154CE | 3.22:1 | AA large text | Lc 22.5 | Dividers and decoration only |
| #2154CE text on white | 6.51:1 | AA | Lc 81.6 | Fine for body text |
| #2154CE text on black | 3.22:1 | AA large text | Lc -20.3 | 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 700.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EAFD
oklch(93.5% 0.028 263.4)
-
Step 200
200
#C7DAFD
oklch(88.5% 0.053 262.7)
-
Step 300
300
#A1C1FF
oklch(81% 0.095 263.3)
-
Step 400
400
#6E9DFF
oklch(70.6% 0.153 263.6)
-
Step 500
500
#4981FD
oklch(63.1% 0.194 263.5)
-
Step 600
600
#2D66EC
oklch(55.5% 0.211 263.6)
-
Step 700
700 (this color)
#2154CE
oklch(49.2% 0.197 263.6)
-
Step 800
800
#1C46A6
oklch(42.8% 0.162 263.3)
-
Step 900
900
#1C3C84
oklch(37.7% 0.127 263.5)
-
Step 950
950
#11244D
oklch(27.1% 0.08 263.3)
#2154CE 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) | #0066D2 | 0.043 |
| Deuteranopia (no green cones) | #0056CC | 0.014 |
| Tritanopia (no blue cones) | #007389 | 0.150 |
| Achromatopsia (no color) | #5E5E5E | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2154CE
#2154CE
oklch(49.2% 0.197 263.6)
- #7C5B00
#7C5B00
oklch(49.2% 0.101 83.9)
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 #2154CE, closest first.
No curated palette has a color within ΔE 0.04 of #2154CE.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.042
- Warm Blue #4B57DB ΔE 0.049
- Azul #1D5DEC ΔE 0.051
- Majorelle Blue #3F37C9 ΔE 0.062
- Neon Blue #4361EE ΔE 0.069
- Royal Blue #4169E1 ΔE 0.069
- Blue With A Hint Of Purple #533CC6 ΔE 0.071
- Blurple #5539CC ΔE 0.075
Use #2154CE 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.