#15738D
Closest named color: Sea Blue (#047495). oklch(51.7% 0.09 222.2), rgb(21, 115, 141).
Aa
White text reads best on this color (5.42:1).
About this color
#15738D is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.090 and its hue 222°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.013 away. White text reads best on it, at 5.42:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 3.86:1 |
| White text | 5.42:1 |
Values
| HEX | #15738D |
| RGB | rgb(21, 115, 141) |
| HSL | hsl(193, 74%, 32%) |
| OKLCH | oklch(51.7% 0.09 222.2) |
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 #15738D | 5.42:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #15738D | 3.86:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #15738D text on white | 5.42:1 | AA | Lc 76.7 | Fine for body text |
| #15738D text on black | 3.86:1 | AA large text | Lc -25.1 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C9DDE5
oklch(88.5% 0.024 223.7)
-
Step 300
300
#A3C8D5
oklch(81% 0.043 221.2)
-
Step 400
400
#6EABC0
oklch(70.7% 0.07 221.8)
-
Step 500
500
#4395B0
oklch(63% 0.089 222.6)
-
Step 600
600
#197F9C
oklch(55.5% 0.097 222.7)
-
Step 700
700 (this color)
#15738D
oklch(51.7% 0.09 222.2)
-
Step 800
800
#0D586C
oklch(42.8% 0.074 221.5)
-
Step 900
900
#174858
oklch(37.7% 0.058 223.4)
-
Step 950
950
#0F2A33
oklch(26.8% 0.037 222.6)
#15738D 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) | #64708E | 0.072 |
| Deuteranopia (no green cones) | #54658D | 0.063 |
| Tritanopia (no blue cones) | #007B7B | 0.044 |
| Achromatopsia (no color) | #6A6A6A | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15738D
#15738D
oklch(51.7% 0.09 222.2)
- #93553D
#93553D
oklch(51.6% 0.09 41.7)
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 #15738D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.013
- Ocean #017B92 ΔE 0.023
- Ocean Blue #03719C ΔE 0.027
- Deep Aqua #08787F ΔE 0.031
- Muted Blue #3B719F ΔE 0.041
- Deep Turquoise #017374 ΔE 0.042
- Peacock Blue #016795 ΔE 0.043
- Bluegreen #017A79 ΔE 0.045
Use #15738D 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.