#156F91
Closest named color: Sea Blue (#047495). oklch(50.8% 0.095 229.7), rgb(21, 111, 145).
Aa
White text reads best on this color (5.65:1).
About this color
#156F91 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 51%, its chroma 0.095 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.015 away. White text reads best on it, at 5.65:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 3.71:1 |
| White text | 5.65:1 |
Values
| HEX | #156F91 |
| RGB | rgb(21, 111, 145) |
| HSL | hsl(196, 75%, 33%) |
| OKLCH | oklch(50.8% 0.095 229.7) |
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 #156F91 | 5.65:1 | AA | Lc -83.1 | Fine for body text |
| Black text on #156F91 | 3.71:1 | AA large text | Lc 26.2 | Dividers and decoration only |
| #156F91 text on white | 5.65:1 | AA | Lc 77.9 | Fine for body text |
| #156F91 text on black | 3.71:1 | AA large text | Lc -23.9 | 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
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C9DDE7
oklch(88.6% 0.025 229.2)
-
Step 300
300
#A3C7D9
oklch(80.9% 0.046 229.7)
-
Step 400
400
#6FAAC6
oklch(70.8% 0.074 229.5)
-
Step 500
500
#4494B7
oklch(63.1% 0.094 229.5)
-
Step 600
600
#1D7EA3
oklch(55.7% 0.102 229.4)
-
Step 700
700 (this color)
#156F91
oklch(50.8% 0.095 229.7)
-
Step 800
800
#105671
oklch(42.6% 0.078 229.9)
-
Step 900
900
#18475C
oklch(37.6% 0.062 231)
-
Step 950
950
#102A36
oklch(27.1% 0.039 230.5)
#156F91 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) | #5D6D93 | 0.065 |
| Deuteranopia (no green cones) | #4D6291 | 0.056 |
| Tritanopia (no blue cones) | #00787A | 0.053 |
| Achromatopsia (no color) | #676767 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #156F91
#156F91
oklch(50.8% 0.095 229.7)
- #905431
#905431
oklch(50.8% 0.094 49.7)
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 #156F91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.015
- Ocean Blue #03719C ΔE 0.017
- Peacock Blue #016795 ΔE 0.028
- Ocean #017B92 ΔE 0.036
- Muted Blue #3B719F ΔE 0.036
- Denim #3B638C ΔE 0.040
- Deep Aqua #08787F ΔE 0.046
- Flat Blue #3C73A8 ΔE 0.048
Use #156F91 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.