#2B757D
Closest named color: Deep Aqua (#08787F). oklch(52% 0.073 205.2), rgb(43, 117, 125).
Aa
White text reads best on this color (5.32:1).
About this color
#2B757D is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.073 and its hue 205°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.015 away. White text reads best on it, at 5.32:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 3.94:1 |
| White text | 5.32:1 |
Values
| HEX | #2B757D |
| RGB | rgb(43, 117, 125) |
| HSL | hsl(186, 49%, 33%) |
| OKLCH | oklch(52% 0.073 205.2) |
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 #2B757D | 5.32:1 | AA | Lc -81.6 | Fine for body text |
| Black text on #2B757D | 3.94:1 | AA large text | Lc 27.8 | Dividers and decoration only |
| #2B757D text on white | 5.32:1 | AA | Lc 76.3 | Fine for body text |
| #2B757D text on black | 3.94:1 | AA large text | Lc -25.5 | 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
#CBDDDF
oklch(88.5% 0.019 204.8)
-
Step 300
300
#A7C8CB
oklch(81% 0.036 203.2)
-
Step 400
400
#76ABB1
oklch(70.6% 0.056 204.9)
-
Step 500
500
#50969E
oklch(63.1% 0.071 205.2)
-
Step 600
600
#2F8089
oklch(55.5% 0.078 205.5)
-
Step 700
700 (this color)
#2B757D
oklch(52% 0.073 205.2)
-
Step 800
800
#1E585F
oklch(42.6% 0.06 206.3)
-
Step 900
900
#1F494D
oklch(37.7% 0.047 203.7)
-
Step 950
950
#132B2D
oklch(27.1% 0.03 202.6)
#2B757D 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) | #6C707E | 0.072 |
| Deuteranopia (no green cones) | #5F677D | 0.066 |
| Tritanopia (no blue cones) | #007A77 | 0.026 |
| Achromatopsia (no color) | #6B6B6B | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B757D
#2B757D
oklch(52% 0.073 205.2)
- #8E5854
#8E5854
oklch(52% 0.072 24.4)
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 #2B757D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.015
- Bluegreen #017A79 ΔE 0.024
- Deep Turquoise #017374 ΔE 0.025
- Dark Aquamarine #017371 ΔE 0.028
- Ocean #017B92 ΔE 0.034
- Teal #008080 ΔE 0.034
- Sea Blue #047495 ΔE 0.041
- Metallic Blue #4F738E ΔE 0.047
Use #2B757D 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.