#1561A3
Closest named color: Peacock Blue (#016795). oklch(48.4% 0.127 250.3), rgb(21, 97, 163).
Aa
White text reads best on this color (6.42:1).
About this color
#1561A3 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.127 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.032 away. White text reads best on it, at 6.42:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.27:1 |
| White text | 6.42:1 |
Values
| HEX | #1561A3 |
| RGB | rgb(21, 97, 163) |
| HSL | hsl(208, 77%, 36%) |
| OKLCH | oklch(48.4% 0.127 250.3) |
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 #1561A3 | 6.42:1 | AA | Lc -86.5 | Fine for body text |
| Black text on #1561A3 | 3.27:1 | AA large text | Lc 22.6 | Dividers and decoration only |
| #1561A3 text on white | 6.42:1 | AA | Lc 81.4 | Fine for body text |
| #1561A3 text on black | 3.27:1 | AA large text | Lc -20.5 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF6
oklch(93.6% 0.018 250.6)
-
Step 200
200
#C9DBEF
oklch(88.4% 0.034 251)
-
Step 300
300
#A3C4E8
oklch(80.8% 0.062 250.8)
-
Step 400
400
#70A5DC
oklch(70.7% 0.099 250.2)
-
Step 500
500
#488DD2
oklch(63% 0.126 250.5)
-
Step 600
600
#2676BF
oklch(55.5% 0.136 250.2)
-
Step 700
700 (this color)
#1561A3
oklch(48.4% 0.127 250.3)
-
Step 800
800
#175186
oklch(42.7% 0.106 250.3)
-
Step 900
900
#1B446B
oklch(37.8% 0.081 249.9)
-
Step 950
950
#11283F
oklch(27.1% 0.052 250.3)
#1561A3 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) | #4065A6 | 0.038 |
| Deuteranopia (no green cones) | #2959A2 | 0.023 |
| Tritanopia (no blue cones) | #00717A | 0.093 |
| Achromatopsia (no color) | #5F5F5F | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1561A3
#1561A3
oklch(48.4% 0.127 250.3)
- #845200
#845200
oklch(48.4% 0.105 69.6)
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 #1561A3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.032
- Mid Blue #276AB3 ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.037
- Light Navy Blue #2E5A88 ΔE 0.045
- Dusky Blue #475F94 ΔE 0.046
- Denim #3B638C ΔE 0.047
- Dusk Blue #26538D ΔE 0.048
- Ocean Blue #03719C ΔE 0.051
Use #1561A3 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.