#298CA4
Closest named color: Teal Blue (#01889F). oklch(59.5% 0.095 217.9), rgb(41, 140, 164).
Aa
Black text reads best on this color (5.38:1).
About this color
#298CA4 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.095 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.020 away. Black text reads best on it, at 5.38:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 5.38:1 |
| White text | 3.90:1 |
Values
| HEX | #298CA4 |
| RGB | rgb(41, 140, 164) |
| HSL | hsl(192, 60%, 40%) |
| OKLCH | oklch(59.5% 0.095 217.9) |
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 #298CA4 | 3.90:1 | AA large text | Lc -71.6 | Content text, not long reading |
| Black text on #298CA4 | 5.38:1 | AA | Lc 38.0 | Non-text elements, placeholder text |
| #298CA4 text on white | 3.90:1 | AA large text | Lc 66.1 | Content text, not long reading |
| #298CA4 text on black | 5.38:1 | AA | Lc -35.6 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C7DEE4
oklch(88.5% 0.026 215.2)
-
Step 300
300
#A0C8D5
oklch(80.8% 0.046 219.6)
-
Step 400
400
#68ACBF
oklch(70.6% 0.074 217.7)
-
Step 500
500 (this color)
#298CA4
oklch(59.5% 0.095 217.9)
-
Step 600
600
#00819A
oklch(55.7% 0.1 217.7)
-
Step 700
700
#006C82
oklch(49.1% 0.088 218.4)
-
Step 800
800
#00596B
oklch(42.8% 0.077 217.7)
-
Step 900
900
#0E4957
oklch(37.6% 0.062 218)
-
Step 950
950
#0C2B33
oklch(27% 0.039 217.8)
#298CA4 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) | #7D88A5 | 0.082 |
| Deuteranopia (no green cones) | #6C7CA4 | 0.072 |
| Tritanopia (no blue cones) | #009494 | 0.041 |
| Achromatopsia (no color) | #818181 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #298CA4
#298CA4
oklch(59.5% 0.095 217.9)
- #AF6A55
#AF6A55
oklch(59.5% 0.094 37.7)
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 #298CA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.020
- Blue NCS #118AB2 ΔE 0.025
- Teal Green #0A9396 ΔE 0.036
- Dark Cyan #008B8B ΔE 0.043
- Dusty Blue #5A86AD ΔE 0.046
- Off Blue #5684AE ΔE 0.046
- Steel Blue #4682B4 ΔE 0.047
- Cerulean #457B9D ΔE 0.049
Use #298CA4 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.