#18679D
Closest named color: Peacock Blue (#016795). oklch(49.6% 0.113 244.5), rgb(24, 103, 157).
Aa
White text reads best on this color (6.05:1).
About this color
#18679D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.113 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.016 away. White text reads best on it, at 6.05:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.46:1 |
| White text | 6.05:1 |
Values
| HEX | #18679D |
| RGB | rgb(24, 103, 157) |
| HSL | hsl(204, 73%, 35%) |
| OKLCH | oklch(49.6% 0.113 244.5) |
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 #18679D | 6.05:1 | AA | Lc -85.0 | Fine for body text |
| Black text on #18679D | 3.46:1 | AA large text | Lc 24.2 | Dividers and decoration only |
| #18679D text on white | 6.05:1 | AA | Lc 79.8 | Fine for body text |
| #18679D text on black | 3.46:1 | AA large text | Lc -22.0 | 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
#C9DCEC
oklch(88.5% 0.03 243.4)
-
Step 300
300
#A4C5E2
oklch(80.9% 0.054 245.1)
-
Step 400
400
#71A7D3
oklch(70.8% 0.086 244)
-
Step 500
500
#4890C8
oklch(63.1% 0.111 244.4)
-
Step 600
600
#2579B5
oklch(55.6% 0.122 244.7)
-
Step 700
700 (this color)
#18679D
oklch(49.6% 0.113 244.5)
-
Step 800
800
#16537E
oklch(42.7% 0.093 244.4)
-
Step 900
900
#1A4565
oklch(37.7% 0.072 244.1)
-
Step 950
950
#11293B
oklch(27.1% 0.045 243.2)
#18679D 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) | #4D699F | 0.047 |
| Deuteranopia (no green cones) | #3B5D9C | 0.035 |
| Tritanopia (no blue cones) | #00747A | 0.079 |
| Achromatopsia (no color) | #626262 | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18679D
#18679D
oklch(49.6% 0.113 244.5)
- #8D5200
#8D5200
oklch(49.6% 0.112 64.4)
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 #18679D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.016
- Ocean Blue #03719C ΔE 0.030
- Denim #3B638C ΔE 0.034
- Mid Blue #276AB3 ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.040
- Muted Blue #3B719F ΔE 0.042
- Dusky Blue #475F94 ΔE 0.042
- Sea Blue #047495 ΔE 0.044
Use #18679D 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.