#256C7F
Closest named color: Deep Turquoise (#017374). oklch(49.6% 0.075 219.1), rgb(37, 108, 127).
Aa
White text reads best on this color (5.94:1).
About this color
#256C7F is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 50%, its chroma 0.075 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Turquoise (#017374), ΔE 0.035 away. White text reads best on it, at 5.94:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Deep Turquoise (#017374) |
| Black text | 3.53:1 |
| White text | 5.94:1 |
Values
| HEX | #256C7F |
| RGB | rgb(37, 108, 127) |
| HSL | hsl(193, 55%, 32%) |
| OKLCH | oklch(49.6% 0.075 219.1) |
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 #256C7F | 5.94:1 | AA | Lc -84.7 | Fine for body text |
| Black text on #256C7F | 3.53:1 | AA large text | Lc 24.6 | Dividers and decoration only |
| #256C7F text on white | 5.94:1 | AA | Lc 79.5 | Fine for body text |
| #256C7F text on black | 3.53:1 | AA large text | Lc -22.3 | 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
#E3ECEF
oklch(93.7% 0.01 219.6)
-
Step 200
200
#CBDDE2
oklch(88.6% 0.021 216.2)
-
Step 300
300
#A8C7D1
oklch(81% 0.036 219.3)
-
Step 400
400
#77AAB9
oklch(70.7% 0.058 218.1)
-
Step 500
500
#5194A8
oklch(63% 0.074 219.4)
-
Step 600
600
#327E93
oklch(55.5% 0.08 219.2)
-
Step 700
700 (this color)
#256C7F
oklch(49.6% 0.075 219.1)
-
Step 800
800
#205766
oklch(42.7% 0.062 219)
-
Step 900
900
#204853
oklch(37.8% 0.049 218.2)
-
Step 950
950
#142A31
oklch(27% 0.031 220.6)
#256C7F 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) | #606980 | 0.063 |
| Deuteranopia (no green cones) | #53607F | 0.056 |
| Tritanopia (no blue cones) | #007272 | 0.035 |
| Achromatopsia (no color) | #646464 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #256C7F
#256C7F
oklch(49.6% 0.075 219.1)
- #875342
#875342
oklch(49.7% 0.075 38.9)
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 #256C7F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Turquoise #017374 ΔE 0.035
- Sea Blue #047495 ΔE 0.037
- Dark Aqua #05696B ΔE 0.037
- Deep Aqua #08787F ΔE 0.037
- Dark Aquamarine #017371 ΔE 0.039
- Denim #3B638C ΔE 0.043
- Peacock Blue #016795 ΔE 0.045
- Ocean Blue #03719C ΔE 0.045
Use #256C7F 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.