#13639C
Closest named color: Peacock Blue (#016795). oklch(48.4% 0.116 246.1), rgb(19, 99, 156).
Aa
White text reads best on this color (6.37:1).
About this color
#13639C is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.116 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.019 away. White text reads best on it, at 6.37:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.29:1 |
| White text | 6.37:1 |
Values
| HEX | #13639C |
| RGB | rgb(19, 99, 156) |
| HSL | hsl(205, 78%, 34%) |
| OKLCH | oklch(48.4% 0.116 246.1) |
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 #13639C | 6.37:1 | AA | Lc -86.4 | Fine for body text |
| Black text on #13639C | 3.29:1 | AA large text | Lc 22.8 | Dividers and decoration only |
| #13639C text on white | 6.37:1 | AA | Lc 81.2 | Fine for body text |
| #13639C text on black | 3.29:1 | AA large text | Lc -20.6 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF4
oklch(93.5% 0.016 245.1)
-
Step 200
200
#C9DCED
oklch(88.6% 0.031 245.1)
-
Step 300
300
#A4C5E3
oklch(80.9% 0.055 246)
-
Step 400
400
#71A6D6
oklch(70.7% 0.09 246.8)
-
Step 500
500
#488FCB
oklch(63.1% 0.116 246.5)
-
Step 600
600
#2578B8
oklch(55.5% 0.126 246.5)
-
Step 700
700 (this color)
#13639C
oklch(48.4% 0.116 246.1)
-
Step 800
800
#165380
oklch(42.8% 0.096 245.6)
-
Step 900
900
#1A4567
oklch(37.8% 0.075 245.6)
-
Step 950
950
#11283C
oklch(26.9% 0.047 246.9)
#13639C 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) | #48669E | 0.046 |
| Deuteranopia (no green cones) | #345A9B | 0.031 |
| Tritanopia (no blue cones) | #007178 | 0.082 |
| Achromatopsia (no color) | #5F5F5F | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #13639C
#13639C
oklch(48.4% 0.116 246.1)
- #875000
#875000
oklch(48.4% 0.108 65.9)
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 #13639C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.019
- Denim Blue #3B5B92 ΔE 0.035
- Denim #3B638C ΔE 0.037
- Light Navy Blue #2E5A88 ΔE 0.038
- Ocean Blue #03719C ΔE 0.041
- Mid Blue #276AB3 ΔE 0.043
- Dusky Blue #475F94 ΔE 0.043
- Dusk Blue #26538D ΔE 0.048
Use #13639C 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.