#397E88
Closest named color: Teal (#008080). oklch(55.3% 0.071 208), rgb(57, 126, 136).
Aa
White text reads best on this color (4.65:1).
About this color
#397E88 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 55%, its chroma 0.071 and its hue 208°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.031 away. White text reads best on it, at 4.65:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.51:1 |
| White text | 4.65:1 |
Values
| HEX | #397E88 |
| RGB | rgb(57, 126, 136) |
| HSL | hsl(188, 41%, 38%) |
| OKLCH | oklch(55.3% 0.071 208) |
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 #397E88 | 4.65:1 | AA | Lc -77.6 | Fine for body text |
| Black text on #397E88 | 4.51:1 | AA | Lc 32.0 | Non-text elements, placeholder text |
| #397E88 text on white | 4.65:1 | AA | Lc 72.1 | Content text, not long reading |
| #397E88 text on black | 4.51:1 | AA | Lc -29.6 | 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 600.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECED
oklch(93.7% 0.01 204.9)
-
Step 200
200
#CDDDDF
oklch(88.6% 0.017 205.8)
-
Step 300
300
#AAC7CB
oklch(80.9% 0.032 206.7)
-
Step 400
400
#7BAAB1
oklch(70.7% 0.051 207.6)
-
Step 500
500
#57959E
oklch(63.1% 0.065 207.6)
-
Step 600
600 (this color)
#397E88
oklch(55.3% 0.071 208)
-
Step 700
700
#2B6B74
oklch(49% 0.066 207.9)
-
Step 800
800
#26575F
oklch(42.6% 0.054 209.5)
-
Step 900
900
#24484D
oklch(37.7% 0.042 207.2)
-
Step 950
950
#162A2D
oklch(26.9% 0.026 207.9)
#397E88 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) | #747A89 | 0.068 |
| Deuteranopia (no green cones) | #687088 | 0.063 |
| Tritanopia (no blue cones) | #008381 | 0.032 |
| Achromatopsia (no color) | #747474 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397E88
#397E88
oklch(55.3% 0.071 208)
- #98625B
#98625B
oklch(55.3% 0.072 27.7)
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 #397E88, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.031
- Ocean #017B92 ΔE 0.032
- Deep Aqua #08787F ΔE 0.036
- Bluegreen #017A79 ΔE 0.039
- Cerulean #457B9D ΔE 0.040
- Teal Blue #01889F ΔE 0.041
- Dark Cyan #008B8B ΔE 0.041
- Metallic Blue #4F738E ΔE 0.041
Use #397E88 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.