#2A748F
Closest named color: Sea Blue (#047495). oklch(52.5% 0.083 226), rgb(42, 116, 143).
Aa
White text reads best on this color (5.25:1).
About this color
#2A748F is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.083 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.017 away. White text reads best on it, at 5.25:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 3.99:1 |
| White text | 5.25:1 |
Values
| HEX | #2A748F |
| RGB | rgb(42, 116, 143) |
| HSL | hsl(196, 55%, 36%) |
| OKLCH | oklch(52.5% 0.083 226) |
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 #2A748F | 5.25:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #2A748F | 3.99:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #2A748F text on white | 5.25:1 | AA | Lc 75.9 | Fine for body text |
| #2A748F text on black | 3.99:1 | AA large text | Lc -25.9 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBEF
oklch(93.5% 0.01 228.9)
-
Step 200
200
#CCDCE4
oklch(88.5% 0.02 229.1)
-
Step 300
300
#A8C6D3
oklch(80.9% 0.037 225.9)
-
Step 400
400
#78A9BD
oklch(70.7% 0.06 225.3)
-
Step 500
500
#5393AD
oklch(63.1% 0.076 226.4)
-
Step 600
600 (this color)
#2A748F
oklch(52.5% 0.083 226)
-
Step 700
700
#266982
oklch(49% 0.077 226.5)
-
Step 800
800
#22566A
oklch(42.7% 0.064 226.6)
-
Step 900
900
#214756
oklch(37.7% 0.05 226.3)
-
Step 950
950
#142A32
oklch(27.1% 0.032 223.6)
#2A748F 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) | #657290 | 0.062 |
| Deuteranopia (no green cones) | #57678F | 0.055 |
| Tritanopia (no blue cones) | #007C7D | 0.046 |
| Achromatopsia (no color) | #6C6C6C | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A748F
#2A748F
oklch(52.5% 0.083 226)
- #925B40
#925B40
oklch(52.6% 0.083 46.6)
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 #2A748F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.017
- Ocean #017B92 ΔE 0.023
- Ocean Blue #03719C ΔE 0.029
- Muted Blue #3B719F ΔE 0.033
- Metallic Blue #4F738E ΔE 0.034
- Deep Aqua #08787F ΔE 0.036
- Dull Blue #49759C ΔE 0.036
- Cerulean #457B9D ΔE 0.039
Use #2A748F 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.