#15697C
Closest named color: Dark Aqua (#05696B). oklch(48.3% 0.08 217.4), rgb(21, 105, 124).
Aa
White text reads best on this color (6.28:1).
About this color
#15697C is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 48%, its chroma 0.080 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aqua (#05696B), ΔE 0.030 away. White text reads best on it, at 6.28:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.34:1 |
| White text | 6.28:1 |
Values
| HEX | #15697C |
| RGB | rgb(21, 105, 124) |
| HSL | hsl(191, 71%, 28%) |
| OKLCH | oklch(48.3% 0.08 217.4) |
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 #15697C | 6.28:1 | AA | Lc -86.1 | Fine for body text |
| Black text on #15697C | 3.34:1 | AA large text | Lc 23.1 | Dividers and decoration only |
| #15697C text on white | 6.28:1 | AA | Lc 80.9 | Fine for body text |
| #15697C text on black | 3.34:1 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#CADDE3
oklch(88.5% 0.022 218.6)
-
Step 300
300
#A5C7D1
oklch(80.8% 0.039 217.5)
-
Step 400
400
#73ABBA
oklch(70.8% 0.062 216.4)
-
Step 500
500
#4B95A9
oklch(63% 0.079 217.8)
-
Step 600
600
#287F94
oklch(55.5% 0.086 217.4)
-
Step 700
700 (this color)
#15697C
oklch(48.3% 0.08 217.4)
-
Step 800
800
#195867
oklch(42.8% 0.066 217.1)
-
Step 900
900
#1C4854
oklch(37.6% 0.052 218.6)
-
Step 950
950
#122A31
oklch(26.9% 0.033 219.1)
#15697C 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) | #5D667D | 0.070 |
| Deuteranopia (no green cones) | #4F5C7C | 0.062 |
| Tritanopia (no blue cones) | #00706F | 0.036 |
| Achromatopsia (no color) | #606060 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15697C
#15697C
oklch(48.3% 0.08 217.4)
- #854D3D
#854D3D
oklch(48.2% 0.08 36.8)
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 #15697C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.030
- Deep Turquoise #017374 ΔE 0.038
- Petrol #005F6A ΔE 0.040
- Dark Aquamarine #017371 ΔE 0.041
- Peacock Blue #016795 ΔE 0.043
- Sea Blue #047495 ΔE 0.045
- Denim #3B638C ΔE 0.046
- Deep Aqua #08787F ΔE 0.046
Use #15697C 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.