#0297CA
Closest named color: Blue NCS (#118AB2). oklch(63.5% 0.128 231.4), rgb(2, 151, 202).
Aa
Black text reads best on this color (6.28:1).
About this color
#0297CA is a medium-light, moderately saturated blue. In OKLCH its lightness is 63%, its chroma 0.128 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.046 away. Black text reads best on it, at 6.28:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 6.28:1 |
| White text | 3.34:1 |
Values
| HEX | #0297CA |
| RGB | rgb(2, 151, 202) |
| HSL | hsl(195, 98%, 40%) |
| OKLCH | oklch(63.5% 0.128 231.4) |
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 #0297CA | 3.34:1 | AA large text | Lc -65.7 | Content text, not long reading |
| Black text on #0297CA | 6.28:1 | AA | Lc 43.9 | Non-text elements, placeholder text |
| #0297CA text on white | 3.34:1 | AA large text | Lc 60.2 | Content text, not long reading |
| #0297CA text on black | 6.28:1 | AA | Lc -41.5 | 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
#F0F7FA
oklch(97.2% 0.008 225.1)
-
Step 100
100
#DEECF4
oklch(93.5% 0.018 232.5)
-
Step 200
200
#C3DEEC
oklch(88.5% 0.035 230.3)
-
Step 300
300
#98C9E2
oklch(81% 0.062 230.6)
-
Step 400
400
#58ACD4
oklch(70.8% 0.1 231.2)
-
Step 500
500 (this color)
#0297CA
oklch(63.5% 0.128 231.4)
-
Step 600
600
#007EA9
oklch(55.6% 0.112 231.2)
-
Step 700
700
#006A8F
oklch(49.2% 0.1 231.3)
-
Step 800
800
#005776
oklch(42.8% 0.087 231.2)
-
Step 900
900
#004863
oklch(37.7% 0.077 231.8)
-
Step 950
950
#022B3C
oklch(27.2% 0.053 231.3)
#0297CA 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) | #7D95CC | 0.084 |
| Deuteranopia (no green cones) | #6685C9 | 0.072 |
| Tritanopia (no blue cones) | #00A5A8 | 0.075 |
| Achromatopsia (no color) | #8C8C8C | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0297CA
#0297CA
oklch(63.5% 0.128 231.4)
- #C7713A
#C7713A
oklch(63.5% 0.129 51)
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 #0297CA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.046
- Water Blue #0E87CC ΔE 0.047
- Cool Blue #4984B8 ΔE 0.057
- Dark Sky Blue #448EE4 ΔE 0.058
- Faded Blue #658CBB ΔE 0.060
- Steel Blue #4682B4 ΔE 0.062
- Dusty Blue #5A86AD ΔE 0.065
- Off Blue #5684AE ΔE 0.066
Use #0297CA 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.