#1258D4
Closest named color: Azul (#1D5DEC). oklch(50.1% 0.202 261.3), rgb(18, 88, 212).
Aa
White text reads best on this color (6.22:1).
About this color
#1258D4 is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.202 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Azul (#1D5DEC), ΔE 0.040 away. White text reads best on it, at 6.22:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.202) |
| Temperature | cool |
| Nearest name | Azul (#1D5DEC) |
| Black text | 3.37:1 |
| White text | 6.22:1 |
Values
| HEX | #1258D4 |
| RGB | rgb(18, 88, 212) |
| HSL | hsl(218, 84%, 45%) |
| OKLCH | oklch(50.1% 0.202 261.3) |
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 #1258D4 | 6.22:1 | AA | Lc -85.4 | Fine for body text |
| Black text on #1258D4 | 3.37:1 | AA large text | Lc 23.8 | Dividers and decoration only |
| #1258D4 text on white | 6.22:1 | AA | Lc 80.2 | Fine for body text |
| #1258D4 text on black | 3.37:1 | AA large text | Lc -21.6 | 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
#DFEBFD
oklch(93.6% 0.028 258.4)
-
Step 200
200
#C5DAFE
oklch(88.4% 0.055 261.2)
-
Step 300
300
#9EC1FF
oklch(80.8% 0.096 261.6)
-
Step 400
400
#699FFF
oklch(70.8% 0.152 261.1)
-
Step 500
500
#3E82FF
oklch(63% 0.199 261.3)
-
Step 600
600
#1C67EF
oklch(55.5% 0.217 261.3)
-
Step 700
700 (this color)
#1258D4
oklch(50.1% 0.202 261.3)
-
Step 800
800
#1046A8
oklch(42.6% 0.167 261.3)
-
Step 900
900
#153C85
oklch(37.6% 0.131 261.5)
-
Step 950
950
#0D244E
oklch(27% 0.083 261.2)
#1258D4 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) | #006AD8 | 0.044 |
| Deuteranopia (no green cones) | #0058D2 | 0.006 |
| Tritanopia (no blue cones) | #00788D | 0.155 |
| Achromatopsia (no color) | #616161 | 0.202 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1258D4
#1258D4
oklch(50.1% 0.202 261.3)
- #815C00
#815C00
oklch(50.1% 0.103 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 #1258D4, closest first.
No curated palette has a color within ΔE 0.04 of #1258D4.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Azul #1D5DEC ΔE 0.040
- Warm Blue #4B57DB ΔE 0.050
- Blue Blue #2242C7 ΔE 0.053
- Neon Blue #4361EE ΔE 0.063
- Royal Blue #4169E1 ΔE 0.063
- Cerulean Blue #056EEE ΔE 0.066
- Electric Blue #0652FF ΔE 0.067
- Bright Blue #0165FC ΔE 0.068
Use #1258D4 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.