#17678D
Closest named color: Peacock Blue (#016795). oklch(48.6% 0.095 235.1), rgb(23, 103, 141).
Aa
White text reads best on this color (6.24:1).
About this color
#17678D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.095 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.014 away. White text reads best on it, at 6.24:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.36:1 |
| White text | 6.24:1 |
Values
| HEX | #17678D |
| RGB | rgb(23, 103, 141) |
| HSL | hsl(199, 72%, 32%) |
| OKLCH | oklch(48.6% 0.095 235.1) |
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 #17678D | 6.24:1 | AA | Lc -85.9 | Fine for body text |
| Black text on #17678D | 3.36:1 | AA large text | Lc 23.3 | Dividers and decoration only |
| #17678D text on white | 6.24:1 | AA | Lc 80.7 | Fine for body text |
| #17678D text on black | 3.36:1 | AA large text | Lc -21.1 | 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
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CADCE8
oklch(88.5% 0.025 236.9)
-
Step 300
300
#A5C6DA
oklch(80.9% 0.045 234.7)
-
Step 400
400
#73A8C8
oklch(70.6% 0.073 235.7)
-
Step 500
500
#4A92BA
oklch(63% 0.094 235.3)
-
Step 600
600
#287CA6
oklch(55.6% 0.102 235)
-
Step 700
700 (this color)
#17678D
oklch(48.6% 0.095 235.1)
-
Step 800
800
#195574
oklch(42.7% 0.079 235.8)
-
Step 900
900
#1C465D
oklch(37.6% 0.061 235.6)
-
Step 950
950
#122937
oklch(26.9% 0.039 237.4)
#17678D 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 | 0.056 |
| Deuteranopia (no green cones) | #455C8C | 0.047 |
| Tritanopia (no blue cones) | #007174 | 0.059 |
| Achromatopsia (no color) | #606060 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17678D
#17678D
oklch(48.6% 0.095 235.1)
- #884F25
#884F25
oklch(48.6% 0.095 54.5)
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 #17678D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.014
- Denim #3B638C ΔE 0.027
- Ocean Blue #03719C ΔE 0.033
- Sea Blue #047495 ΔE 0.038
- Light Navy Blue #2E5A88 ΔE 0.038
- Denim Blue #3B5B92 ΔE 0.044
- Dusky Blue #475F94 ΔE 0.048
- Muted Blue #3B719F ΔE 0.050
Use #17678D 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.