#23789A
Closest named color: Sea Blue (#047495). oklch(53.9% 0.094 229.5), rgb(35, 120, 154).
Aa
White text reads best on this color (4.97:1).
About this color
#23789A is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 54%, its chroma 0.094 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.019 away. White text reads best on it, at 4.97:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 4.22:1 |
| White text | 4.97:1 |
Values
| HEX | #23789A |
| RGB | rgb(35, 120, 154) |
| HSL | hsl(197, 63%, 37%) |
| OKLCH | oklch(53.9% 0.094 229.5) |
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 #23789A | 4.97:1 | AA | Lc -79.5 | Fine for body text |
| Black text on #23789A | 4.22:1 | AA large text | Lc 30.0 | Non-text elements, placeholder text |
| #23789A text on white | 4.97:1 | AA | Lc 74.1 | Content text, not long reading |
| #23789A text on black | 4.22:1 | AA large text | Lc -27.6 | 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
#E2ECF0
oklch(93.7% 0.012 223.5)
-
Step 200
200
#CADCE6
oklch(88.4% 0.024 231.9)
-
Step 300
300
#A5C6D7
oklch(80.8% 0.043 230.3)
-
Step 400
400
#73A9C3
oklch(70.7% 0.068 229.7)
-
Step 500
500
#4C93B4
oklch(63.1% 0.087 230.4)
-
Step 600
600 (this color)
#23789A
oklch(53.9% 0.094 229.5)
-
Step 700
700
#1B6988
oklch(49% 0.087 229.8)
-
Step 800
800
#1A566F
oklch(42.7% 0.073 230)
-
Step 900
900
#1D475A
oklch(37.7% 0.057 230.4)
-
Step 950
950
#122A34
oklch(27.1% 0.035 227.4)
#23789A 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) | #66769C | 0.065 |
| Deuteranopia (no green cones) | #566B9A | 0.056 |
| Tritanopia (no blue cones) | #008183 | 0.054 |
| Achromatopsia (no color) | #707070 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23789A
#23789A
oklch(53.9% 0.094 229.5)
- #9A5D3A
#9A5D3A
oklch(53.9% 0.094 49.6)
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 #23789A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.019
- Ocean #017B92 ΔE 0.021
- Ocean Blue #03719C ΔE 0.027
- Muted Blue #3B719F ΔE 0.028
- Cerulean #457B9D ΔE 0.029
- Dull Blue #49759C ΔE 0.031
- Nice Blue #107AB0 ΔE 0.034
- Flat Blue #3C73A8 ΔE 0.035
Use #23789A 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.