#1F7557
Closest named color: Dark Aquamarine (#017371). oklch(50.4% 0.094 165.2), rgb(31, 117, 87).
Aa
White text reads best on this color (5.61:1).
About this color
#1F7557 is a medium-dark, moderately saturated green. In OKLCH its lightness is 50%, its chroma 0.094 and its hue 165°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.043 away. White text reads best on it, at 5.61:1.
| Hue family | Greens |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.094) |
| Temperature | in between |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.74:1 |
| White text | 5.61:1 |
Values
| HEX | #1F7557 |
| RGB | rgb(31, 117, 87) |
| HSL | hsl(159, 58%, 29%) |
| OKLCH | oklch(50.4% 0.094 165.2) |
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 #1F7557 | 5.61:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #1F7557 | 3.74:1 | AA large text | Lc 26.3 | Dividers and decoration only |
| #1F7557 text on white | 5.61:1 | AA | Lc 77.7 | Fine for body text |
| #1F7557 text on black | 3.74:1 | AA large text | Lc -24.0 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E2EDE8
oklch(93.6% 0.013 167.2)
-
Step 200
200
#CBDFD5
oklch(88.6% 0.025 164.4)
-
Step 300
300
#A6CAB9
oklch(80.8% 0.045 165)
-
Step 400
400
#74AF95
oklch(70.6% 0.073 165)
-
Step 500
500
#4C9B7C
oklch(63% 0.092 165.6)
-
Step 600
600
#298665
oklch(55.7% 0.101 165.3)
-
Step 700
700 (this color)
#1F7557
oklch(50.4% 0.094 165.2)
-
Step 800
800
#195C44
oklch(42.6% 0.078 165)
-
Step 900
900
#1D4C3A
oklch(37.8% 0.06 165.4)
-
Step 950
950
#122C22
oklch(26.9% 0.038 166.4)
#1F7557 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) | #726C55 | 0.092 |
| Deuteranopia (no green cones) | #676459 | 0.090 |
| Tritanopia (no blue cones) | #00756D | 0.034 |
| Achromatopsia (no color) | #676767 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F7557
#1F7557
oklch(50.4% 0.094 165.2)
- #8A4D70
#8A4D70
oklch(50.4% 0.094 345.6)
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 #1F7557, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.043
- Deep Turquoise #017374 ΔE 0.048
- Bluegreen #017A79 ΔE 0.050
- Jungle Green #048243 ΔE 0.057
- Dark Aqua #05696B ΔE 0.059
- Dark Green Blue #1F6357 ΔE 0.059
- Deep Aqua #08787F ΔE 0.060
- Teal #008080 ΔE 0.062
Use #1F7557 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.