#397981
Closest named color: Deep Aqua (#08787F). oklch(53.7% 0.066 206.2), rgb(57, 121, 129).
Aa
White text reads best on this color (4.96:1).
About this color
#397981 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 54%, its chroma 0.066 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.026 away. White text reads best on it, at 4.96:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 4.22:1 |
| White text | 4.96:1 |
Values
| HEX | #397981 |
| RGB | rgb(57, 121, 129) |
| HSL | hsl(187, 39%, 36%) |
| OKLCH | oklch(53.7% 0.066 206.2) |
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 #397981 | 4.96:1 | AA | Lc -79.6 | Fine for body text |
| Black text on #397981 | 4.22:1 | AA large text | Lc 29.9 | Dividers and decoration only |
| #397981 text on white | 4.96:1 | AA | Lc 74.2 | Content text, not long reading |
| #397981 text on black | 4.22:1 | AA large text | Lc -27.5 | 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 600.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E4ECED
oklch(93.7% 0.009 205.9)
-
Step 200
200
#CDDCDE
oklch(88.4% 0.016 206.4)
-
Step 300
300
#ABC7CA
oklch(81% 0.03 204.5)
-
Step 400
400
#7EAAAF
oklch(70.8% 0.048 204.9)
-
Step 500
500
#5B949C
oklch(63% 0.061 207.1)
-
Step 600
600 (this color)
#397981
oklch(53.7% 0.066 206.2)
-
Step 700
700
#306B72
oklch(49.2% 0.062 205.8)
-
Step 800
800
#29575D
oklch(42.7% 0.051 206.6)
-
Step 900
900
#26484C
oklch(37.8% 0.04 205.4)
-
Step 950
950
#172A2D
oklch(27% 0.025 208.4)
#397981 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) | #707582 | 0.065 |
| Deuteranopia (no green cones) | #656C81 | 0.060 |
| Tritanopia (no blue cones) | #007E7B | 0.032 |
| Achromatopsia (no color) | #707070 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397981
#397981
oklch(53.7% 0.066 206.2)
- #915F59
#915F59
oklch(53.8% 0.067 27)
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 #397981, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.026
- Teal #008080 ΔE 0.031
- Bluegreen #017A79 ΔE 0.031
- Ocean #017B92 ΔE 0.033
- Metallic Blue #4F738E ΔE 0.039
- Deep Turquoise #017374 ΔE 0.041
- Dark Aquamarine #017371 ΔE 0.044
- Sea Blue #047495 ΔE 0.046
Use #397981 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.