#1B757E
Closest named color: Deep Aqua (#08787F). oklch(51.6% 0.081 205.1), rgb(27, 117, 126).
Aa
White text reads best on this color (5.39:1).
About this color
#1B757E is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.081 and its hue 205°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.010 away. White text reads best on it, at 5.39:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 3.89:1 |
| White text | 5.39:1 |
Values
| HEX | #1B757E |
| RGB | rgb(27, 117, 126) |
| HSL | hsl(185, 65%, 30%) |
| OKLCH | oklch(51.6% 0.081 205.1) |
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 #1B757E | 5.39:1 | AA | Lc -81.9 | Fine for body text |
| Black text on #1B757E | 3.89:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #1B757E text on white | 5.39:1 | AA | Lc 76.5 | Fine for body text |
| #1B757E text on black | 3.89:1 | AA large text | Lc -25.2 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#CADEE0
oklch(88.6% 0.022 204)
-
Step 300
300
#A4C8CD
oklch(80.8% 0.039 206.8)
-
Step 400
400
#71ACB3
oklch(70.7% 0.062 205.3)
-
Step 500
500
#4697A0
oklch(63% 0.08 205.1)
-
Step 600
600
#1F828C
oklch(55.7% 0.087 205.2)
-
Step 700
700 (this color)
#1B757E
oklch(51.6% 0.081 205.1)
-
Step 800
800
#125960
oklch(42.6% 0.067 205)
-
Step 900
900
#19494F
oklch(37.6% 0.052 206.6)
-
Step 950
950
#102B2E
oklch(27% 0.033 205.1)
#1B757E 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) | #6B707F | 0.080 |
| Deuteranopia (no green cones) | #5D667E | 0.073 |
| Tritanopia (no blue cones) | #007A78 | 0.022 |
| Achromatopsia (no color) | #6A6A6A | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B757E
#1B757E
oklch(51.6% 0.081 205.1)
- #915550
#915550
oklch(51.7% 0.081 25.3)
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 #1B757E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.010
- Deep Turquoise #017374 ΔE 0.019
- Bluegreen #017A79 ΔE 0.021
- Dark Aquamarine #017371 ΔE 0.024
- Ocean #017B92 ΔE 0.032
- Teal #008080 ΔE 0.033
- Sea Blue #047495 ΔE 0.038
- Dark Aqua #05696B ΔE 0.045
Use #1B757E 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.