#1253D2
Closest named color: Blue Blue (#2242C7). oklch(49% 0.206 262), rgb(18, 83, 210).
Aa
White text reads best on this color (6.57:1).
About this color
#1253D2 is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.206 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.041 away. White text reads best on it, at 6.57:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.206) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.19:1 |
| White text | 6.57:1 |
Values
| HEX | #1253D2 |
| RGB | rgb(18, 83, 210) |
| HSL | hsl(220, 84%, 45%) |
| OKLCH | oklch(49% 0.206 262) |
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 #1253D2 | 6.57:1 | AA | Lc -86.8 | Fine for body text |
| Black text on #1253D2 | 3.19:1 | AA large text | Lc 22.4 | Dividers and decoration only |
| #1253D2 text on white | 6.57:1 | AA | Lc 81.7 | Fine for body text |
| #1253D2 text on black | 3.19:1 | AA large text | Lc -20.2 | 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
#9FC1FF
oklch(80.9% 0.096 262.2)
-
Step 400
400
#6B9EFF
oklch(70.7% 0.153 262.2)
-
Step 500
500
#4282FF
oklch(63.2% 0.198 262)
-
Step 600
600
#1F66F2
oklch(55.6% 0.222 262)
-
Step 700
700 (this color)
#1253D2
oklch(49% 0.206 262)
-
Step 800
800
#1245AA
oklch(42.6% 0.171 262.1)
-
Step 900
900
#163C87
oklch(37.8% 0.133 262)
-
Step 950
950
#0E244F
oklch(27.1% 0.084 262)
#1253D2 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) | #0066D6 | 0.046 |
| Deuteranopia (no green cones) | #0055D0 | 0.007 |
| Tritanopia (no blue cones) | #00748A | 0.157 |
| Achromatopsia (no color) | #5D5D5D | 0.206 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1253D2
#1253D2
oklch(49% 0.206 262)
- #7D5900
#7D5900
oklch(48.9% 0.101 81.2)
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 #1253D2, closest first.
No curated palette has a color within ΔE 0.04 of #1253D2.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.041
- Azul #1D5DEC ΔE 0.048
- Warm Blue #4B57DB ΔE 0.055
- Majorelle Blue #3F37C9 ΔE 0.064
- Electric Blue #0652FF ΔE 0.069
- Neon Blue #4361EE ΔE 0.071
- Vibrant Blue #0339F8 ΔE 0.074
- Royal Blue #4169E1 ΔE 0.074
Use #1253D2 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.