#31727D
Closest named color: Deep Aqua (#08787F). oklch(51.5% 0.068 210.2), rgb(49, 114, 125).
Aa
White text reads best on this color (5.47:1).
About this color
#31727D is a medium-dark, muted teal or cyan. In OKLCH its lightness is 51%, its chroma 0.068 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.023 away. White text reads best on it, at 5.47:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 3.83:1 |
| White text | 5.47:1 |
Values
| HEX | #31727D |
| RGB | rgb(49, 114, 125) |
| HSL | hsl(189, 44%, 34%) |
| OKLCH | oklch(51.5% 0.068 210.2) |
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 #31727D | 5.47:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #31727D | 3.83:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #31727D text on white | 5.47:1 | AA | Lc 77.1 | Fine for body text |
| #31727D text on black | 3.83:1 | AA large text | Lc -24.6 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECED
oklch(93.7% 0.01 204.9)
-
Step 200
200
#CCDDE0
oklch(88.6% 0.019 209.4)
-
Step 300
300
#A9C7CC
oklch(80.9% 0.033 208.8)
-
Step 400
400
#7AAAB3
oklch(70.7% 0.053 210.4)
-
Step 500
500
#5695A0
oklch(63.2% 0.067 209.9)
-
Step 600
600
#387F8B
oklch(55.6% 0.073 210.1)
-
Step 700
700 (this color)
#31727D
oklch(51.5% 0.068 210.2)
-
Step 800
800
#245760
oklch(42.6% 0.056 210.8)
-
Step 900
900
#23484E
oklch(37.7% 0.043 209.1)
-
Step 950
950
#152A2E
oklch(26.9% 0.028 211.1)
#31727D 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) | #686E7E | 0.063 |
| Deuteranopia (no green cones) | #5D657D | 0.059 |
| Tritanopia (no blue cones) | #007775 | 0.031 |
| Achromatopsia (no color) | #696969 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31727D
#31727D
oklch(51.5% 0.068 210.2)
- #8A5850
#8A5850
oklch(51.4% 0.068 29.5)
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 #31727D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.023
- Deep Turquoise #017374 ΔE 0.028
- Dark Aquamarine #017371 ΔE 0.032
- Bluegreen #017A79 ΔE 0.033
- Ocean #017B92 ΔE 0.037
- Sea Blue #047495 ΔE 0.040
- Metallic Blue #4F738E ΔE 0.043
- Teal #008080 ΔE 0.043
Use #31727D 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.