#2B709A
Closest named color: Ocean Blue (#03719C). oklch(52.1% 0.095 239.2), rgb(43, 112, 154).
Aa
White text reads best on this color (5.40:1).
About this color
#2B709A is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.095 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean Blue (#03719C), ΔE 0.016 away. White text reads best on it, at 5.40:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Ocean Blue (#03719C) |
| Black text | 3.88:1 |
| White text | 5.40:1 |
Values
| HEX | #2B709A |
| RGB | rgb(43, 112, 154) |
| HSL | hsl(203, 56%, 39%) |
| OKLCH | oklch(52.1% 0.095 239.2) |
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 #2B709A | 5.40:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #2B709A | 3.88:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #2B709A text on white | 5.40:1 | AA | Lc 76.7 | Fine for body text |
| #2B709A text on black | 3.88:1 | AA large text | Lc -25.1 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CBDCE9
oklch(88.6% 0.026 240.7)
-
Step 300
300
#A6C5DC
oklch(80.8% 0.047 240.3)
-
Step 400
400
#75A7CA
oklch(70.6% 0.074 239.7)
-
Step 500
500
#4F91BC
oklch(63.1% 0.094 239.2)
-
Step 600
600
#2F7BA9
oklch(55.7% 0.103 239.2)
-
Step 700
700 (this color)
#2B709A
oklch(52.1% 0.095 239.2)
-
Step 800
800
#1E5475
oklch(42.6% 0.078 239.4)
-
Step 900
900
#1F465F
oklch(37.8% 0.062 239.4)
-
Step 950
950
#132937
oklch(27% 0.038 238.3)
#2B709A 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) | #5C709C | 0.051 |
| Deuteranopia (no green cones) | #4D6599 | 0.042 |
| Tritanopia (no blue cones) | #007B7E | 0.066 |
| Achromatopsia (no color) | #6A6A6A | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B709A
#2B709A
oklch(52.1% 0.095 239.2)
- #915B2B
#915B2B
oklch(52.2% 0.095 59.8)
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 #2B709A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Blue #03719C ΔE 0.016
- Muted Blue #3B719F ΔE 0.016
- Sea Blue #047495 ΔE 0.022
- Flat Blue #3C73A8 ΔE 0.028
- Dull Blue #49759C ΔE 0.033
- Peacock Blue #016795 ΔE 0.036
- Denim #3B638C ΔE 0.039
- Nice Blue #107AB0 ΔE 0.039
Use #2B709A 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.