#287684
Closest named color: Deep Aqua (#08787F). oklch(52.5% 0.077 211.8), rgb(40, 118, 132).
Aa
White text reads best on this color (5.23:1).
About this color
#287684 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.077 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.017 away. White text reads best on it, at 5.23:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 4.01:1 |
| White text | 5.23:1 |
Values
| HEX | #287684 |
| RGB | rgb(40, 118, 132) |
| HSL | hsl(189, 53%, 34%) |
| OKLCH | oklch(52.5% 0.077 211.8) |
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 #287684 | 5.23:1 | AA | Lc -81.1 | Fine for body text |
| Black text on #287684 | 4.01:1 | AA large text | Lc 28.4 | Dividers and decoration only |
| #287684 text on white | 5.23:1 | AA | Lc 75.7 | Fine for body text |
| #287684 text on black | 4.01:1 | AA large text | Lc -26.0 | 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 600.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECEE
oklch(93.7% 0.01 212.5)
-
Step 200
200
#CBDDE0
oklch(88.5% 0.02 208.8)
-
Step 300
300
#A8C7CE
oklch(80.9% 0.035 212.9)
-
Step 400
400
#78AAB5
oklch(70.7% 0.055 212.8)
-
Step 500
500
#5295A2
oklch(63.1% 0.071 211.6)
-
Step 600
600 (this color)
#287684
oklch(52.5% 0.077 211.8)
-
Step 700
700
#246B78
oklch(49% 0.072 212.1)
-
Step 800
800
#205862
oklch(42.8% 0.06 211.3)
-
Step 900
900
#214850
oklch(37.7% 0.046 212.7)
-
Step 950
950
#142A2F
oklch(26.9% 0.029 214)
#287684 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) | #6B7285 | 0.072 |
| Deuteranopia (no green cones) | #5E6884 | 0.065 |
| Tritanopia (no blue cones) | #007C7A | 0.031 |
| Achromatopsia (no color) | #6C6C6C | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #287684
#287684
oklch(52.5% 0.077 211.8)
- #91594E
#91594E
oklch(52.4% 0.077 31.8)
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 #287684, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.017
- Ocean #017B92 ΔE 0.024
- Bluegreen #017A79 ΔE 0.029
- Sea Blue #047495 ΔE 0.032
- Deep Turquoise #017374 ΔE 0.032
- Teal #008080 ΔE 0.035
- Dark Aquamarine #017371 ΔE 0.036
- Metallic Blue #4F738E ΔE 0.042
Use #287684 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.