#1266A5
Closest named color: Peacock Blue (#016795). oklch(49.7% 0.125 247.7), rgb(18, 102, 165).
Aa
White text reads best on this color (6.05:1).
About this color
#1266A5 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.125 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.028 away. White text reads best on it, at 6.05:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.46:1 |
| White text | 6.05:1 |
Values
| HEX | #1266A5 |
| RGB | rgb(18, 102, 165) |
| HSL | hsl(206, 80%, 36%) |
| OKLCH | oklch(49.7% 0.125 247.7) |
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 #1266A5 | 6.05:1 | AA | Lc -84.9 | Fine for body text |
| Black text on #1266A5 | 3.46:1 | AA large text | Lc 24.3 | Dividers and decoration only |
| #1266A5 text on white | 6.05:1 | AA | Lc 79.7 | Fine for body text |
| #1266A5 text on black | 3.46:1 | AA large text | Lc -22.1 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C8DCEF
oklch(88.5% 0.034 246.8)
-
Step 300
300
#A2C5E6
oklch(80.9% 0.06 247)
-
Step 400
400
#6EA6DA
oklch(70.7% 0.097 247.6)
-
Step 500
500
#448FD0
oklch(63.2% 0.123 247.4)
-
Step 600
600
#1F78BD
oklch(55.7% 0.134 247.4)
-
Step 700
700 (this color)
#1266A5
oklch(49.7% 0.125 247.7)
-
Step 800
800
#125284
oklch(42.7% 0.103 247.6)
-
Step 900
900
#18446A
oklch(37.6% 0.081 248)
-
Step 950
950
#10283E
oklch(27% 0.051 248.4)
#1266A5 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) | #4769A8 | 0.044 |
| Deuteranopia (no green cones) | #315DA4 | 0.029 |
| Tritanopia (no blue cones) | #00757D | 0.089 |
| Achromatopsia (no color) | #636363 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1266A5
#1266A5
oklch(49.7% 0.125 247.7)
- #8B5400
#8B5400
oklch(49.7% 0.11 67.2)
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 #1266A5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.028
- Mid Blue #276AB3 ΔE 0.028
- Ocean Blue #03719C ΔE 0.038
- French Blue #436BAD ΔE 0.043
- Denim Blue #3B5B92 ΔE 0.044
- Denim #3B638C ΔE 0.045
- Dusky Blue #475F94 ΔE 0.047
- Muted Blue #3B719F ΔE 0.048
Use #1266A5 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.