#15609C
Closest named color: Peacock Blue (#016795). oklch(47.7% 0.119 248.4), rgb(21, 96, 156).
Aa
White text reads best on this color (6.59:1).
About this color
#15609C is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.119 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.026 away. White text reads best on it, at 6.59:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.18:1 |
| White text | 6.59:1 |
Values
| HEX | #15609C |
| RGB | rgb(21, 96, 156) |
| HSL | hsl(207, 76%, 35%) |
| OKLCH | oklch(47.7% 0.119 248.4) |
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 #15609C | 6.59:1 | AA | Lc -87.2 | Fine for body text |
| Black text on #15609C | 3.18:1 | AA large text | Lc 21.9 | Dividers and decoration only |
| #15609C text on white | 6.59:1 | AA | Lc 82.2 | Fine for body text |
| #15609C text on black | 3.18:1 | AA large text | Lc -19.7 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#C9DBEE
oklch(88.4% 0.033 249.6)
-
Step 300
300
#A4C5E5
oklch(81% 0.058 247.7)
-
Step 400
400
#72A6D8
oklch(70.8% 0.092 248.3)
-
Step 500
500
#4A8ECD
oklch(63% 0.118 248.6)
-
Step 600
600
#2977BA
oklch(55.5% 0.128 248.6)
-
Step 700
700 (this color)
#15609C
oklch(47.7% 0.119 248.4)
-
Step 800
800
#195282
oklch(42.7% 0.099 248.2)
-
Step 900
900
#1C4468
oklch(37.7% 0.077 248.4)
-
Step 950
950
#11283D
oklch(26.9% 0.049 248.1)
#15609C 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) | #43639E | 0.040 |
| Deuteranopia (no green cones) | #2E589B | 0.026 |
| Tritanopia (no blue cones) | #006E76 | 0.085 |
| Achromatopsia (no color) | #5D5D5D | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15609C
#15609C
oklch(47.7% 0.119 248.4)
- #825000
#825000
oklch(47.7% 0.104 68.9)
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 #15609C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.026
- Denim Blue #3B5B92 ΔE 0.032
- Light Navy Blue #2E5A88 ΔE 0.035
- Denim #3B638C ΔE 0.040
- Dusk Blue #26538D ΔE 0.040
- Dusky Blue #475F94 ΔE 0.043
- Mid Blue #276AB3 ΔE 0.046
- Ocean Blue #03719C ΔE 0.050
Use #15609C 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.