#1B6669
Closest named color: Dark Aqua (#05696B). oklch(46.8% 0.07 199), rgb(27, 102, 105).
Aa
White text reads best on this color (6.66:1).
About this color
#1B6669 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 47%, its chroma 0.070 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aqua (#05696B), ΔE 0.011 away. White text reads best on it, at 6.66:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.070) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.15:1 |
| White text | 6.66:1 |
Values
| HEX | #1B6669 |
| RGB | rgb(27, 102, 105) |
| HSL | hsl(182, 59%, 26%) |
| OKLCH | oklch(46.8% 0.07 199) |
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 #1B6669 | 6.66:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #1B6669 | 3.15:1 | AA large text | Lc 21.4 | Dividers and decoration only |
| #1B6669 text on white | 6.66:1 | AA | Lc 82.6 | Fine for body text |
| #1B6669 text on black | 3.15:1 | AA large text | Lc -19.3 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CCDDDE
oklch(88.5% 0.018 201.1)
-
Step 300
300
#A8C8C9
oklch(81% 0.034 198.8)
-
Step 400
400
#78ABAD
oklch(70.6% 0.054 199.1)
-
Step 500
500
#529799
oklch(63.2% 0.07 198)
-
Step 600
600
#328184
oklch(55.6% 0.076 198.7)
-
Step 700
700 (this color)
#1B6669
oklch(46.8% 0.07 199)
-
Step 800
800
#20595B
oklch(42.8% 0.059 198.4)
-
Step 900
900
#21494B
oklch(37.7% 0.045 199.8)
-
Step 950
950
#142B2C
oklch(27.1% 0.029 199.2)
#1B6669 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) | #5E6169 | 0.072 |
| Deuteranopia (no green cones) | #535969 | 0.066 |
| Tritanopia (no blue cones) | #006A67 | 0.016 |
| Achromatopsia (no color) | #5C5C5C | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B6669
#1B6669
oklch(46.8% 0.07 199)
- #7D494A
#7D494A
oklch(46.7% 0.071 18.9)
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 #1B6669, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.011
- Petrol #005F6A ΔE 0.027
- Dark Green Blue #1F6357 ΔE 0.028
- Dark Aquamarine #017371 ΔE 0.039
- Deep Turquoise #017374 ΔE 0.039
- Slate #516572 ΔE 0.057
- Deep Aqua #08787F ΔE 0.057
- Deep Teal #00555A ΔE 0.059
Use #1B6669 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.