#01618A
Closest named color: Peacock Blue (#016795). oklch(46.6% 0.1 236.2), rgb(1, 97, 138).
Aa
White text reads best on this color (6.82:1).
About this color
#01618A is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.100 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.023 away. White text reads best on it, at 6.82:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.07:1 |
| White text | 6.82:1 |
Values
| HEX | #01618A |
| RGB | rgb(1, 97, 138) |
| HSL | hsl(198, 99%, 27%) |
| OKLCH | oklch(46.6% 0.1 236.2) |
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 #01618A | 6.82:1 | AA | Lc -88.0 | Fine for body text |
| Black text on #01618A | 3.07:1 | AA large text | Lc 21.1 | Dividers and decoration only |
| #01618A text on white | 6.82:1 | AA | Lc 83.0 | Fine for body text |
| #01618A text on black | 3.07:1 | AA large text | Lc -18.9 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C9DCE9
oklch(88.4% 0.027 237.6)
-
Step 300
300
#A4C6DC
oklch(80.9% 0.048 236.6)
-
Step 400
400
#70A8CB
oklch(70.6% 0.078 236.8)
-
Step 500
500
#4692BD
oklch(63% 0.099 236.1)
-
Step 600
600
#217CAA
oklch(55.6% 0.108 236.3)
-
Step 700
700 (this color)
#01618A
oklch(46.6% 0.1 236.2)
-
Step 800
800
#145576
oklch(42.7% 0.083 236.3)
-
Step 900
900
#19465F
oklch(37.5% 0.065 236.6)
-
Step 950
950
#102938
oklch(26.9% 0.042 237.4)
#01618A 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) | #4D618C | 0.058 |
| Deuteranopia (no green cones) | #3C5689 | 0.046 |
| Tritanopia (no blue cones) | #006C6F | 0.064 |
| Achromatopsia (no color) | #5B5B5B | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #01618A
#01618A
oklch(46.6% 0.1 236.2)
- #834917
#834917
oklch(46.6% 0.1 56.7)
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 #01618A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.023
- Light Navy Blue #2E5A88 ΔE 0.028
- Denim #3B638C ΔE 0.037
- Deep Sea Blue #015482 ΔE 0.040
- Denim Blue #3B5B92 ΔE 0.042
- Dusk Blue #26538D ΔE 0.044
- YInMn Blue #415A77 ΔE 0.049
- Light Navy #155084 ΔE 0.050
Use #01618A 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.