#15788B
Closest named color: Ocean (#017B92). oklch(52.9% 0.088 214.8), rgb(21, 120, 139).
Aa
White text reads best on this color (5.13:1).
About this color
#15788B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.088 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean (#017B92), ΔE 0.012 away. White text reads best on it, at 5.13:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Ocean (#017B92) |
| Black text | 4.09:1 |
| White text | 5.13:1 |
Values
| HEX | #15788B |
| RGB | rgb(21, 120, 139) |
| HSL | hsl(190, 74%, 31%) |
| OKLCH | oklch(52.9% 0.088 214.8) |
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 #15788B | 5.13:1 | AA | Lc -80.4 | Fine for body text |
| Black text on #15788B | 4.09:1 | AA large text | Lc 29.1 | Dividers and decoration only |
| #15788B text on white | 5.13:1 | AA | Lc 75.0 | Content text, not long reading |
| #15788B text on black | 4.09:1 | AA large text | Lc -26.7 | 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 600.
-
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
#CADDE2
oklch(88.5% 0.022 215.3)
-
Step 300
300
#A4C8D1
oklch(81% 0.04 214.6)
-
Step 400
400
#71ABB9
oklch(70.6% 0.064 214.6)
-
Step 500
500
#4896A8
oklch(63.1% 0.081 214.9)
-
Step 600
600 (this color)
#15788B
oklch(52.9% 0.088 214.8)
-
Step 700
700
#126C7D
oklch(49% 0.082 214.5)
-
Step 800
800
#145866
oklch(42.6% 0.068 215)
-
Step 900
900
#1A4953
oklch(37.8% 0.053 214.1)
-
Step 950
950
#112B31
oklch(27.1% 0.034 214.8)
#15788B 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) | #6B748C | 0.079 |
| Deuteranopia (no green cones) | #5B698B | 0.070 |
| Tritanopia (no blue cones) | #007F7E | 0.035 |
| Achromatopsia (no color) | #6E6E6E | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15788B
#15788B
oklch(52.9% 0.088 214.8)
- #975848
#975848
oklch(52.9% 0.088 35.1)
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 #15788B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean #017B92 ΔE 0.012
- Deep Aqua #08787F ΔE 0.020
- Sea Blue #047495 ΔE 0.023
- Bluegreen #017A79 ΔE 0.033
- Teal #008080 ΔE 0.035
- Deep Turquoise #017374 ΔE 0.038
- Ocean Blue #03719C ΔE 0.040
- Dark Aquamarine #017371 ΔE 0.043
Use #15788B 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.