#156259
Closest named color: Dark Green Blue (#1F6357). oklch(44.9% 0.073 183.3), rgb(21, 98, 89).
Aa
White text reads best on this color (7.18:1).
About this color
#156259 is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 45%, its chroma 0.073 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.008 away. White text reads best on it, at 7.18:1.
| Hue family | Teals and cyans |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.92:1 |
| White text | 7.18:1 |
Values
| HEX | #156259 |
| RGB | rgb(21, 98, 89) |
| HSL | hsl(173, 65%, 23%) |
| OKLCH | oklch(44.9% 0.073 183.3) |
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 #156259 | 7.18:1 | AAA | Lc -89.5 | Fine for body text |
| Black text on #156259 | 2.92:1 | Fails | Lc 19.4 | Dividers and decoration only |
| #156259 text on white | 7.18:1 | AAA | Lc 84.6 | Fine for body text |
| #156259 text on black | 2.92:1 | Fails | Lc -17.4 | 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 800.
-
Step 50
50
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEA
oklch(93.6% 0.013 179.5)
-
Step 200
200
#C9DFDA
oklch(88.6% 0.024 180.6)
-
Step 300
300
#A3CAC3
oklch(80.9% 0.043 183.1)
-
Step 400
400
#6EAFA5
oklch(70.7% 0.068 183.5)
-
Step 500
500
#429B8F
oklch(63.2% 0.087 183.4)
-
Step 600
600
#148579
oklch(55.6% 0.094 183.5)
-
Step 700
700
#007066
oklch(49% 0.087 184.2)
-
Step 800
800 (this color)
#156259
oklch(44.9% 0.073 183.3)
-
Step 900
900
#164B45
oklch(37.6% 0.056 184.6)
-
Step 950
950
#0F2C28
oklch(27% 0.036 183.4)
#156259 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) | #5D5C59 | 0.078 |
| Deuteranopia (no green cones) | #52545A | 0.073 |
| Tritanopia (no blue cones) | #00645F | 0.010 |
| Achromatopsia (no color) | #575757 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #156259
#156259
oklch(44.9% 0.073 183.3)
- #774351
#774351
oklch(45% 0.074 3.1)
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 #156259, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.008
- Dark Aqua #05696B ΔE 0.031
- Petrol #005F6A ΔE 0.033
- Deep Teal #00555A ΔE 0.046
- Spruce #0A5F38 ΔE 0.052
- Pine #2B5D34 ΔE 0.053
- Dark Blue Green #005249 ΔE 0.056
- Dark Aquamarine #017371 ΔE 0.056
Use #156259 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.