#397C87
Closest named color: Ocean (#017B92). oklch(54.7% 0.07 209.6), rgb(57, 124, 135).
Aa
White text reads best on this color (4.76:1).
About this color
#397C87 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 55%, its chroma 0.070 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean (#017B92), ΔE 0.030 away. White text reads best on it, at 4.76:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Ocean (#017B92) |
| Black text | 4.40:1 |
| White text | 4.76:1 |
Values
| HEX | #397C87 |
| RGB | rgb(57, 124, 135) |
| HSL | hsl(188, 41%, 38%) |
| OKLCH | oklch(54.7% 0.07 209.6) |
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 #397C87 | 4.76:1 | AA | Lc -78.3 | Fine for body text |
| Black text on #397C87 | 4.40:1 | AA large text | Lc 31.2 | Non-text elements, placeholder text |
| #397C87 text on white | 4.76:1 | AA | Lc 72.9 | Content text, not long reading |
| #397C87 text on black | 4.40:1 | AA large text | Lc -28.8 | 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
#AAC7CC
oklch(81% 0.032 209.2)
-
Step 400
400
#7CAAB2
oklch(70.8% 0.05 209.4)
-
Step 500
500
#59949F
oklch(63% 0.064 210.7)
-
Step 600
600 (this color)
#397C87
oklch(54.7% 0.07 209.6)
-
Step 700
700
#2D6B75
oklch(49.2% 0.065 209.6)
-
Step 800
800
#27575F
oklch(42.7% 0.053 209.8)
-
Step 900
900
#25484E
oklch(37.8% 0.042 209.8)
-
Step 950
950
#162A2D
oklch(26.9% 0.026 207.9)
#397C87 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) | #727888 | 0.066 |
| Deuteranopia (no green cones) | #666F87 | 0.060 |
| Tritanopia (no blue cones) | #00817F | 0.034 |
| Achromatopsia (no color) | #737373 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397C87
#397C87
oklch(54.7% 0.07 209.6)
- #956159
#956159
oklch(54.7% 0.07 29.1)
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 #397C87, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean #017B92 ΔE 0.030
- Teal #008080 ΔE 0.031
- Deep Aqua #08787F ΔE 0.033
- Bluegreen #017A79 ΔE 0.037
- Metallic Blue #4F738E ΔE 0.038
- Cerulean #457B9D ΔE 0.039
- Stormy Blue #507B9C ΔE 0.043
- Teal Blue #01889F ΔE 0.045
Use #397C87 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.