#18607E
Closest named color: Light Navy Blue (#2E5A88). oklch(46.1% 0.083 231), rgb(24, 96, 126).
Aa
White text reads best on this color (6.96:1).
About this color
#18607E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.083 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.031 away. White text reads best on it, at 6.96:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 3.01:1 |
| White text | 6.96:1 |
Values
| HEX | #18607E |
| RGB | rgb(24, 96, 126) |
| HSL | hsl(198, 68%, 29%) |
| OKLCH | oklch(46.1% 0.083 231) |
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 #18607E | 6.96:1 | AA | Lc -88.8 | Fine for body text |
| Black text on #18607E | 3.01:1 | AA large text | Lc 20.3 | Dividers and decoration only |
| #18607E text on white | 6.96:1 | AA | Lc 83.8 | Fine for body text |
| #18607E text on black | 3.01:1 | AA large text | Lc -18.2 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2EBF0
oklch(93.5% 0.012 231.7)
-
Step 200
200
#CBDCE5
oklch(88.4% 0.022 230.6)
-
Step 300
300
#A7C6D6
oklch(80.9% 0.04 230.3)
-
Step 400
400
#77A8C2
oklch(70.6% 0.065 232)
-
Step 500
500
#5193B2
oklch(63.2% 0.082 230.3)
-
Step 600
600
#327C9E
oklch(55.5% 0.089 231.5)
-
Step 700
700 (this color)
#18607E
oklch(46.1% 0.083 231)
-
Step 800
800
#20566E
oklch(42.8% 0.069 230.6)
-
Step 900
900
#204759
oklch(37.8% 0.054 230.4)
-
Step 950
950
#142934
oklch(26.9% 0.034 232.8)
#18607E 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) | #515F7F | 0.056 |
| Deuteranopia (no green cones) | #43557E | 0.048 |
| Tritanopia (no blue cones) | #00686A | 0.048 |
| Achromatopsia (no color) | #595959 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18607E
#18607E
oklch(46.1% 0.083 231)
- #7D492A
#7D492A
oklch(46% 0.084 50.3)
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 #18607E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.031
- Petrol #005F6A ΔE 0.036
- YInMn Blue #415A77 ΔE 0.037
- Peacock Blue #016795 ΔE 0.038
- Denim #3B638C ΔE 0.039
- Deep Sea Blue #015482 ΔE 0.042
- Dark Aqua #05696B ΔE 0.049
- Denim Blue #3B5B92 ΔE 0.050
Use #18607E 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.