#01678D
Closest named color: Peacock Blue (#016795). oklch(48.3% 0.099 232.8), rgb(1, 103, 141).
Aa
White text reads best on this color (6.31:1).
About this color
#01678D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.099 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.013 away. White text reads best on it, at 6.31:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.32:1 |
| White text | 6.31:1 |
Values
| HEX | #01678D |
| RGB | rgb(1, 103, 141) |
| HSL | hsl(196, 99%, 28%) |
| OKLCH | oklch(48.3% 0.099 232.8) |
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 #01678D | 6.31:1 | AA | Lc -86.0 | Fine for body text |
| Black text on #01678D | 3.32:1 | AA large text | Lc 23.2 | Dividers and decoration only |
| #01678D text on white | 6.31:1 | AA | Lc 80.9 | Fine for body text |
| #01678D text on black | 3.32:1 | AA large text | Lc -21.0 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C9DDE8
oklch(88.6% 0.026 231.7)
-
Step 300
300
#A3C7DB
oklch(81% 0.048 232.5)
-
Step 400
400
#6EA9C9
oklch(70.6% 0.077 233.1)
-
Step 500
500
#4393BB
oklch(63% 0.098 233.1)
-
Step 600
600
#1A7DA7
oklch(55.6% 0.107 232.6)
-
Step 700
700 (this color)
#01678D
oklch(48.3% 0.099 232.8)
-
Step 800
800
#0E5674
oklch(42.7% 0.082 232.3)
-
Step 900
900
#17475E
oklch(37.7% 0.064 233.1)
-
Step 950
950
#0F2A37
oklch(27.1% 0.041 231.9)
#01678D 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) | #54668F | 0.063 |
| Deuteranopia (no green cones) | #435B8C | 0.052 |
| Tritanopia (no blue cones) | #007174 | 0.059 |
| Achromatopsia (no color) | #606060 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #01678D
#01678D
oklch(48.3% 0.099 232.8)
- #894D22
#894D22
oklch(48.3% 0.099 53.4)
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 #01678D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.013
- Denim #3B638C ΔE 0.034
- Ocean Blue #03719C ΔE 0.035
- Sea Blue #047495 ΔE 0.039
- Light Navy Blue #2E5A88 ΔE 0.040
- Denim Blue #3B5B92 ΔE 0.048
- Dusky Blue #475F94 ΔE 0.053
- Muted Blue #3B719F ΔE 0.054
Use #01678D 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.